Delhi Metro#Phase IV

File:Delhi Metro evolution.gif

The concept of mass rapid transit for New Delhi first emerged from a 1969 traffic and travel characteristics study in the city.{{cite journal |last=Siemiatycki |first=Matti |date=June 2006 |title=Message in a Metro: Building Urban Rail Infrastructure and Image in Delhi, India |journal=International Journal of Urban and Regional Research |pages=277–292 |volume=30 |issue=2 |doi=10.1111/j.1468-2427.2006.00664.x |doi-access=free }} Over the next several years, committees in a number of government departments were commissioned to examine issues related to technology, route alignment, and governmental jurisdiction. In 1984, the Urban Arts Commission proposed the development of a multi-modal transport system which would build three underground mass rapid transit corridors and augmenting the city's suburban railway and road transport networks.{{cite web |url=http://www.delhimetrorail.com/needformetro/history.aspx |title=History of Delhi Metro |publisher=DMRC |access-date=17 September 2009 |url-status=dead |archive-url=https://web.archive.org/web/20100925022045/http://www.delhimetrorail.com/needformetro/history.aspx |archive-date=25 September 2010 }}

The city expanded significantly while technical studies and financing the project underway, doubling its population and increasing the number of vehicles five-fold between 1981 and 1998. Traffic congestion and pollution soared as an increasing number of commuters used private vehicles, and the existing bus system was unable to bear the load. A 1992 attempt to privatise the bus transport system compounded the problem, with inexperienced operators plying poorly maintained, noisy and polluting buses on lengthy routes; this resulted in long waiting times, unreliable service, overcrowding, unqualified drivers, speeding and reckless driving{{Cite journal |last=Pucher |first=John |author2=Nisha Korattyswaroopam |author3=Neenu Ittyerah |title=The Crisis of Public Transport in India |journal=Journal of Public Transportation |year=2004 |volume=7 |issue=4 |pages=1–20 |doi=10.5038/2375-0901.7.4.1 |doi-access=free }} which led to road accidents. The Government of India under Prime Minister H.D. Deve Gowda{{Cite web|url=https://timesofindia.indiatimes.com/india/the-derailment-of-e-sreedharan/articleshow/81295358.cms|title=The derailment of E Sreedharan|date=2 March 2021|website=TOI|language=en|access-date=4 March 2021}} and the Government of Delhi set up the Delhi Metro Rail Corporation (DMRC) on 3 May 1995, with Elattuvalapil Sreedharan its managing director.{{cite web |url=http://www.delhimetrorail.com/needformetro/metro-need.aspx |title=Structure of Delhi Metro |publisher=DMRC |access-date=17 September 2009 |url-status=dead |archive-url=https://web.archive.org/web/20100916160251/http://delhimetrorail.com/needformetro/metro-need.aspx |archive-date=16 September 2010 }}

Mangu Singh succeeded Sreedharan as DMRC managing director on 31 December 2011.{{Cite web |title=Sreedharan calls it a day; Mangu Singh takes over as new chief of Delhi Metro |url=https://www.ndtv.com/india-news/sreedharan-calls-it-a-day-mangu-singh-takes-over-as-new-chief-of-delhi-metro-567587 |access-date=2023-11-06 |website=NDTV.com}}

When the project was originally approved by the Union Cabinet in September 1996, it had three corridors. In 1997, official development assistance loans from Japan were granted to finance and conduct the first phase of the system.{{Cite web |title=Breaking Ground: A Narrative on the Making of Delhi Metro |url=https://www.jica.go.jp/Resource/activities/evaluation/ku57pq00001zf034-att/analysis_en_01.pdf |access-date=June 4, 2024 |website=jica.go.jp}}

Construction of the Delhi Metro began on 1 October 1998.{{cite news |url=http://www.indianexpress.com/res/web/pIe/ie/daily/19981002/27550424.html |title=Delhi metro rail work begins but without fanfare |newspaper=The Indian Express |url-status=dead |archive-url=https://web.archive.org/web/20080418065417/http://www.indianexpress.com/res/web/pIe/ie/daily/19981002/27550424.html |archive-date=18 April 2008 }} To avoid problems experienced by the Kolkata Metro, which witnessed substantial delays and ran 12 times over budget due to "political meddling, technical problems and bureaucratic delays", the DMRC was created as a special-purpose vehicle vested with autonomy and power to execute the large project which involved many technical complexities in a difficult urban environment within a limited time frame. Putting the central and state governments on an equal footing gave an unprecedented level of autonomy and freedom to the company, which had full powers to hire people, decide on tenders, and control funds.{{cite news |url=http://www.expressindia.com/news/fullstory.php?newsid=84775 |title=Delhi Metro showcases public sector success |website=The Indian Express |date=13 April 2007 |access-date=10 September 2009 |url-status=dead |archive-url=https://web.archive.org/web/20081225005743/http://www.expressindia.com/news/fullstory.php?newsid=84775 |archive-date=25 December 2008}}{{cite report |author=CAG of India |date=2008 |title=Chapter 2, Coordination and Planning – Implementation of Phase I of Delhi Mass Rapid Transit System by DMRC Limited (Report No. PA 17 of 2008) |url=https://cag.gov.in/uploads/old_reports/union/union_performance/2007_2008/Commercial/Report_no_17/chap_2.pdf |page=1 |access-date=27 December 2023}} The DMRC hired the Hong Kong MTRC as a technical consultant on rapid-transit operation and construction techniques.{{Cite web|url=http://www.mtr.com.hk/archive/corporate/ch/investor/2001frpt_c/annual%20report%202001(C).pdf|title=二零零一度|website=MTR Corporation|access-date=3 August 2017}} Construction proceeded smoothly except for a major disagreement in 2000, when the Ministry of Railways forced the system to use {{Track gauge|5ft6in|lk=on}} broad gauge despite the DMRC's preference for standard gauge.{{cite web|url=http://www.thehindubusinessline.com/2000/08/07/stories/140760l1.htm|title=Delhi Metro Rail to adopt BG system|date=7 August 2000|website=Business Line|publisher=The Hindu|location=New Delhi|archive-url=https://web.archive.org/web/20160201164121/http://www.thehindubusinessline.com/2000/08/07/stories/140760l1.htm|archive-date=1 February 2016|url-status=dead|access-date=16 January 2018}} This decision led to an additional capital expenditure of {{INRConvert|260|c}}.{{cite report |author=CAG of India |date=2008 |title=Chapter 3, Selection of Technologies – Implementation of Phase I of Delhi Mass Rapid Transit System by DMRC Limited (Report No. PA 17 of 2008) |url=https://cag.gov.in/uploads/old_reports/union/union_performance/2007_2008/Commercial/Report_no_17/chap_3.pdf |page=2 |access-date=27 December 2023 |quote=Based on their engineering judgment, the management had informed (December 2003) the MoUD that the adoption of the BG had resulted in an additional cost of Rs. 260 crore (Annexure II). The company also anticipated additional energy consumption of Rs. 2.26 crore per annum (Annexure III) due to adoption of the BG rolling stock and as such has decided to adopt the SG for all new lines in Phase II except for the extensions of the existing lines.}}{{cite report |author=CAG of India |date=2008 |title=Annexures – Implementation of Phase I of Delhi Mass Rapid Transit System by DMRC Limited (Report No. PA 17 of 2008) |url=https://cag.gov.in/uploads/old_reports/union/union_performance/2007_2008/Commercial/Report_no_17/annexures.pdf |page=2 |access-date=27 December 2023}}

The Delhi Metro's first line, the Red Line, was inaugurated by Prime Minister Atal Bihari Vajpayee on 24 December 2002.{{Cite news |title=Indian PM launches Delhi metro |url=http://news.bbc.co.uk/2/hi/south_asia/2602907.stm |newspaper=BBC News |date=24 December 2002 |access-date=22 April 2010 |url-status=live |archive-url=https://web.archive.org/web/20120422001958/http://news.bbc.co.uk/2/hi/south_asia/2602907.stm |archive-date=22 April 2012 }} The metro became India's second underground rapid transit system, after the Kolkata Metro, when the Vishwa Vidyalaya–Kashmere Gate section of the Yellow Line opened on 20 December 2004. The underground line was inaugurated by Prime Minister Manmohan Singh. The project's first phase was completed in 2006,{{Cite web|url=http://www.tribuneindia.com/2006/20061027/delhi.htm#1|title=The Tribune, Chandigarh, India – Delhi and neighbourhood|website=The Tribune|access-date=12 February 2017|url-status=live|archive-url=https://web.archive.org/web/20160312114559/http://www.tribuneindia.com/2006/20061027/delhi.htm#1|archive-date=12 March 2016}}{{Cite web|url=http://www.tribuneindia.com/2006/20060114/saturday/main1.htm|title=The Tribune – Magazine section – Saturday Extra|website=The Tribune|access-date=12 February 2017|url-status=live|archive-url=https://web.archive.org/web/20070716153346/http://www.tribuneindia.com/2006/20060114/saturday/main1.htm|archive-date=16 July 2007}} on budget and almost three years ahead of schedule, an achievement described by Business Week as "nothing short of a miracle".{{cite magazine |author=Nandini Lakshman |url=http://www.businessweek.com/magazine/content/07_12/b4026009.htm |title=The Miracle-Worker of the Delhi Metro |magazine=Bloomberg BusinessWeek |date=19 March 2007 |access-date=10 September 2009 |url-status=dead |archive-url=https://web.archive.org/web/20081225004202/http://www.businessweek.com/magazine/content/07_12/b4026009.htm |archive-date=25 December 2008 }}

A 64.75 kilometer (40.23 miles) network of 59 stations was constructed in Delhi, encompassing the initial sections of the Red, Yellow, and Blue Lines. The stations were opened to the public between 25 December 2002 and 11 November 2006.

A total of {{convert|123.3|km|mi|adj=mid|-long}} network of 86 stations and 10 routes and extensions was built. Seven routes were extensions of the Phase I network, three were new colour-coded lines, and three routes connect to other cities (the Yellow Line to Gurgaon and the Blue Line to Noida and Ghaziabad) of the national capital region in the states of Haryana and Uttar Pradesh. At the end of Phases I and II, the network's total length was {{convert|188.05|km|abbr=on}} and 145 stations became operational between 4 June 2008 and 27 August 2011.

Phase I (Red, Yellow and Blue Lines) and Phase II (Green, Violet, and Airport Express Lines) focused on adding radial lines to expand the network. To further reduce congestion and improve connectivity, Phase III included eight extensions to existing lines, two ring lines (the Pink and Magenta Lines) and the Grey Line. It has 28 underground stations, three new lines and seven route extensions, totaling {{convert|162.08|km|mi}}, at a cost of {{INRConvert|410.079|b}}.{{cite web |url=https://www.delhimetrorail.com/pages/en/funding |title=Funding |date=5 April 2019 |website=delhimetrorail.com |publisher=Delhi Metro Rail Corporation |access-date=12 January 2022 |quote=Phase III: The total estimated expenditure for Phase III expansion is Rs. 41,079 crores.}}{{cite news|url=http://post.jagran.com/Delhi-Metro-rings-in-the-New-Year-under-new-chief-1325423311|title=Delhi Metro rings in the New Year under new chief|date=1 January 2012|newspaper=Jagran Post|access-date=16 January 2018|archive-url=https://web.archive.org/web/20170702223600/http://post.jagran.com/delhi-metro-rings-in-the-new-year-under-new-chief-1325423311|archive-date=2 July 2017|url-status=dead|publisher=Dainik Jagran|location=New Delhi}} The three new Phase III lines are the Pink Line on Inner Ring Road (Line 7), the Magenta Line on Outer Ring Road (Line 8) and the Grey Line connecting Dwarka and Najafgarh (Line 9).

Work on Phase III began in 2011,{{cite news|url=http://articles.economictimes.indiatimes.com/2011-12-11/news/30504664_1_e-sreedharan-delhi-metro-modern-transport|archive-url=https://web.archive.org/web/20150613110439/http://articles.economictimes.indiatimes.com/2011-12-11/news/30504664_1_e-sreedharan-delhi-metro-modern-transport|url-status=dead|archive-date=13 June 2015|title=Metro to cover whole of Delhi by 2012|date=11 December 2011|newspaper=The Economic Times|access-date=8 April 2012}}{{cite news|url=http://indianexpress.com/article/cities/delhi/jung-wants-better-access-to-all-metro-stations|title=Jung wants better access to all Metro stations|date=23 April 2014|newspaper=The Indian Express|access-date=24 April 2014|archive-url=https://web.archive.org/web/20140424171321/http://indianexpress.com/article/cities/delhi/jung-wants-better-access-to-all-metro-stations/|archive-date=24 April 2014|url-status=live}} with 2016 the planned deadline.{{cite press release|title=Phase 3 Corridors|publisher=DMRC|url=http://delhimetrorail.com/Corridors.aspx|access-date=4 June 2017|url-status=dead|archive-url=https://web.archive.org/web/20170606064936/http://delhimetrorail.com/Corridors.aspx|archive-date=6 June 2017}} Over 20 tunnel-boring machines were used simultaneously to expedite construction,{{cite news|url=http://articles.economictimes.indiatimes.com/2012-01-31/news/31010369_1_tunnelling-tbms-metro-s-phase-iii|archive-url=https://web.archive.org/web/20160305024414/http://articles.economictimes.indiatimes.com/2012-01-31/news/31010369_1_tunnelling-tbms-metro-s-phase-iii|url-status=dead|archive-date=5 March 2016|title=Tunnelling work starts for Metro's Phase III|date=31 January 2012|newspaper=The Economic Times|access-date=8 April 2012}} which was completed in March 2019 (except for a small stretch due to non-availability of land).[http://economictimes.indiatimes.com/industry/transportation/railways/will-not-let-funding-row-derail-phase-iv-government/articleshow/59435629.cms Will not let funding row derail Phase-IV: Government] {{webarchive|url=https://web.archive.org/web/20170707054713/http://economictimes.indiatimes.com/industry/transportation/railways/will-not-let-funding-row-derail-phase-iv-government/articleshow/59435629.cms|date=7 July 2017}}, The Economic Times, 4 July 2017. Short extensions were later added to Phase III, which was expected to be completed by the end of 2020, but construction was delayed due to the COVID-19 pandemic. It was completed on 18 September 2021 with the opening of the Grey Line extension from Najafgarh to Dhansa Bus Stand.{{cite news |last= Prasad |first=Nikita |date= 17 September 2021|title=Grey Line's Najafgarh-Dhansa Bus Stand Corridor To Open For Services Tomorrow| url=https://www.ndtv.com/business/delhi-metro-grey-line-delhi-metro-grey-line-najafgarh-dhansa-bus-stand-corridor-to-open-for-passengers-tomorrow-2543764 |work= NDTV| access-date= 12 January 2022}} An extension of the Airport Line to Yashobhoomi Dwarka Sector - 25 metro station was later added, and it was completed on 17 September 2023.{{Cite news |date=2023-09-17 |title=Airport Line extension opens for passengers, ends at YashoBhoomi Dwarka Sector 25 station |work=The Times of India |url=https://timesofindia.indiatimes.com/business/india-business/airport-line-extension-opens-for-passengers-ends-at-yashobhoomi-dwarka-sector-25-station/articleshow/103733029.cms?from=mdr |access-date=2023-10-01 |issn=0971-8257}}

Driverless operations on the {{convert|38|km|mi|adj=mid|-long}} Magenta line began on 28 December 2021, making it the Delhi Metro's (and India's) first driverless metro line.{{cite news |last=Bedi |first=Aneesa |date= 28 December 2020|title=PM Modi launches India's first driverless metro train in Delhi. Here's all you need to know|url=https://theprint.in/theprint-essential/pm-modi-launches-indias-first-driverless-metro-train-in-delhi-heres-all-you-need-to-know/575285/ |work=The Print| access-date= 12 January 2022}} On 25 November 2021, the {{convert|59|km|mi|adj=mid|-long}} Pink Line also began driverless operations. The total driverless DMRC network is nearly {{convert|97|km|mi|abbr=on}}, putting Delhi Metro in fourth position globally among such networks behind Kuala Lumpur.{{cite news |date= 25 November 2021|title=Driverless train operations on Pink Line flagged off |url=https://www.moneycontrol.com/news/india/driverless-train-operations-on-pink-line-flagged-off-7760501.html/amp |work= Money Control| access-date= 12 January 2022}}

The expected daily ridership of the network after the completion of Phase III was estimated at 53.47 lakh passengers. Actual DMRC ridership was 27.79 lakh in 2019–20, 51.97 percent of the projected ridership. Actual ridership of the Phase III corridors was 4.38 lakh, compared with a projected ridership of 20.89 lakh in 2019–20 (a deficit of 79.02 percent).{{cite web |url=https://www.hindustantimes.com/cities/delhi-news/delhi-metro-ridership-only-half-of-the-figure-projected-by-dmrc-cag-report-101638469842598.html |title=Delhi Metro ridership only half of the figure projected by DMRC: CAG report |last=Chitlangia |first=Risha |date=3 December 2021 |publisher=Hindustan Times |access-date= 12 January 2022 |quote=The CAG report said pointed out that the DMRC had projected an average daily ridership in the entire network (phases I, II and III) would rise to 53.47 lakh in 2019-20 but the actual ridership was only around 27.79 lakh (51.97% of the projected figure). The report also claimed that DMRC had projected daily ridership of around 20.89 lakhs in the four Phase III corridors in 2019-20 but the actual ridership was just 4.38 lakh.}}{{cite web | url=https://cag.gov.in/uploads/download_audit_report/2021/Report%20No.%2011%20of%202021_DMRC_English-061a88483a1f130.47012068.pdf |title=Report No.11 of 2021 - Performance Audit on Implementation of Phase III, Delhi Mass Rapid Transit System by DMRC, Ministry of Housing and Urban Affairs |date=2 December 2021 |website=cag.gov.in |publisher= Comptroller and Auditor General of India |access-date= 12 January 2022 |page= 16}} The communication-based train control (CBTC) on Phase III trains enables them to run at a 90-second headway, although the actual headway between trains is higher because of the relatively low demand on the new corridors.{{cite web |url=https://www.delhimetrorail.com/train-frequency |title=Delhi metro average train frequency during peak and off-peak hours ( As on 31.12.2021) |website= delhimetrorail.com |publisher= Delhi Metro Rail Corporation| access-date= 12 January 2022}} Keeping the short headway and other constraints in mind, DMRC changed its decision to build nine-car-long stations for new lines and opted for shorter stations which can accommodate six-car trains.{{cite web | url=https://cag.gov.in/uploads/download_audit_report/2021/Report%20No.%2011%20of%202021_DMRC_English-061a88483a1f130.47012068.pdf |title=Report No.11 of 2021 - Performance Audit on Implementation of Phase III, Delhi Mass Rapid Transit System by DMRC, Ministry of Housing and Urban Affairs |date=2 December 2021 |website=cag.gov.in |publisher= Comptroller and Auditor General of India |access-date= 12 January 2022 |page= 12}}

Phase IV, with a length of {{convert|103|km|mi|abbr=on}} and six lines, was finalized by the Government of Delhi in December 2018.{{Cite web |date=2018-12-20 |title=Delhi Metro's Much-awaited Phase 4 Gets AAP Govt's Nod, Likely to be Ready by 2024 |url=https://www.news18.com/news/india/delhi-metros-much-awaited-phase-4-gets-aap-govts-nod-likely-to-be-ready-by-2024-1978485.html |access-date=2022-05-16 |website=News18 |language=en}} Approval from the government of India was received for three priority corridors in March 2019.{{Cite news |title=Delhi Metro: Cabinet approves three corridors of Delhi Metro Phase IV |work=The Economic Times |url=https://economictimes.indiatimes.com/industry/transportation/railways/cabinet-approves-three-corridors-of-delhi-metro-phase-iv/articleshow/68301051.cms |access-date=2022-05-16}} Construction of the corridors {{convert|65.1|km|mi|abbr=on|adj=on}} began on 30 December 2019, with an expected completion date of 2026.{{cite news |date= 20 June 2021 |title=Completion targets of Metro Phase-4 will depend on Covid-19 scenario: DMRC |url=https://www.hindustantimes.com/cities/delhi-news/completion-targets-of-metro-phase-4-will-depend-on-covid-19-scenario-dmrc-101624192413235.html |work= Hindustan Times |access-date= 11 January 2022| quote = “DMRC is currently engaged in the construction of 65 kilometers of new lines across three priority corridors as part of its Phase 4 expansion. These corridors are expected to be completed by 2025. However, given the fact that the Covid-19 scenario is still evolving, the completion targets shall be reviewed accordingly,” said Anuj Dayal, executive director, of corporate communications, DMRC.}} The metro's total length will exceed {{convert|450|km|mi}} at the end of Phase IV,[https://timesofindia.indiatimes.com/city/delhi/delhi-metro-phase-4-gets-government-nod/articleshow/56379166.cms Delhi Metro Phase-4 gets government nod], The Times of India, 6 January 2017. not including other independently operated systems in the National Capital Region such as the {{convert|29.7|km|mi|adj=mid|-long}} Aqua Line of the Noida-Greater Noida Metro{{cite news |author=Gaurav Vivek Bhatnagar |url=http://www.hindu.com/2006/12/25/stories/2006122514830100.htm |title=Delhi Metro map to cover Greater Noida |date=25 December 2006 |access-date=10 September 2009 |url-status=dead |archive-url=https://web.archive.org/web/20090601085515/http://www.hindu.com/2006/12/25/stories/2006122514830100.htm |newspaper=The Hindu |archive-date=1 June 2009 }} and the {{convert|11.7|km|mi|adj=on}} Rapid Metro Gurgaon which connect to the Delhi Metro.{{Cite news |author=Megha Suri |url=https://timesofindia.indiatimes.com/city/delhi/-Pvt-metro-link-to-get-Central-nod-soon/articleshow/5514881.cms |archive-url=https://web.archive.org/web/20121105163856/http://articles.timesofindia.indiatimes.com/2010-01-30/delhi/28137396_1_metro-link-dlf-metro-rapid-metro-rail-gurgaon |url-status=live |archive-date=5 November 2012 |title=Pvt metro link to get Central nod soon |newspaper=The Times of India |date=30 January 2010 |access-date=2 February 2010}}[https://www.financialexpress.com/infrastructure/delhi-metro-dmrc-to-come-up-with-elevated-road-network-below-these-3-new-lines-details-here/1420938/ Delhi Metro: DMRC to come up with elevated road network below these 3 new lines], The Financial Express, 21 December 2018.

On 19 October 2008, a launching gantry and part of the overhead Blue Line extension under construction in Laxmi Nagar collapsed and fell on a passing bus. Workers were using a crane to lift a 400-tonne concrete span of the bridge when the gantry and a {{convert|34|m|ft|adj=mid|-long}} span of the bridge collapsed on the bus. The driver and a construction worker were killed.{{Cite news |url=http://www.ibnlive.com/news/delhi-metro-bridge-collapses-1-dead--your-say--pics/76209-3.html?from=rssfeed |title=Delhi Metro bridge collapses; 1 dead |newspaper=IBN Live |publisher=CNN-IBN |date=19 October 2008 |access-date=19 October 2008 |archive-date=28 December 2019 |archive-url=https://web.archive.org/web/20191228071537/https://www.news18.com/ |url-status=dead }}

On 12 July 2009, a section of a bridge collapsed while it was being erected at Zamrudpur, east of Kailash, on the Central Secretariat – Badarpur corridor. Six people died and 15 were injured.{{Cite news|url=http://www.hindustantimes.com/delhi-news/a-chronology-of-delhi-metro-accidents/story-sLeHNhHvW5diUXA8kIBk5K.html|title=A chronology of Delhi Metro accidents|date=12 July 2009|newspaper=Hindustan Times|access-date=22 January 2018|archive-url=https://web.archive.org/web/20180107180520/http://www.hindustantimes.com/delhi-news/a-chronology-of-delhi-metro-accidents/story-sLeHNhHvW5diUXA8kIBk5K.html|archive-date=7 January 2018|url-status=live}} A crane removing the debris collapsed the following day and collapsed two other nearby cranes, injuring six.{{Cite news|url=https://timesofindia.indiatimes.com/city/delhi/Day-2-3-cranes-fall-Metro-image-takes-beating/articleshow/4774296.cms?referral=PM|title=Day 2: 3 cranes fall, Metro image takes beating|last=Suri|first=Megha|date=14 July 2009|newspaper=The Times of India|access-date=22 January 2018|archive-url=https://web.archive.org/web/20140627200911/http://timesofindia.indiatimes.com/city/delhi/Day-2-3-cranes-fall-Metro-image-takes-beating/articleshow/4774296.cms?referral=PM|archive-date=27 June 2014|url-status=live|location=New Delhi}} On 22 July 2009, a worker at the Ashok Park Metro station was killed when a steel beam fell on him.{{cite news|url=http://www.centralchronicle.com/viewnews.asp?articleID=10567 |title=Labourer dies at Delhi Metro construction site |newspaper=Central Chronicle |date=22 July 2009 |access-date=22 April 2010 |url-status=dead |archive-url=https://web.archive.org/web/20110708131946/http://www.centralchronicle.com/viewnews.asp?articleID=10567 |archive-date=8 July 2011 }} Over a hundred people, including 93 workers, have died since work on the metro began in 1998.{{cite news|url=http://www.hindustantimes.com/delhi-news/city-s-nightmare-on-wheels/story-oXFBsU0IoAgu90F2uxfx7M.html|title=City's nightmare on wheels|last=Mathur|first=Atul|date=7 December 2009|newspaper=Hindustan Times|access-date=22 January 2018|archive-url=https://web.archive.org/web/20180122181558/http://www.hindustantimes.com/delhi-news/city-s-nightmare-on-wheels/story-oXFBsU0IoAgu90F2uxfx7M.html|archive-date=22 January 2018|url-status=live|location=Delhi}}

On 23 April 2018, five people were injured when an iron girder fell off the elevated section of a Metro structure under construction at the Mohan Nagar intersection in Ghaziabad. A car, an auto rickshaw, and a motorbike were also damaged in the incident.{{cite news|url=https://www.hindustantimes.com/noida/five-injured-as-iron-girder-falls-off-metro-structure-in-ghaziabad/story-UTU1uSjNUWBJ8cMJI0SE3K.html|title=Five injured as iron girder falls off Metro structure in Ghaziabad|date=23 April 2018|newspaper=Hindustan Times|archive-url=https://web.archive.org/web/20180423141309/https://www.hindustantimes.com/noida/five-injured-as-iron-girder-falls-off-metro-structure-in-ghaziabad/story-UTU1uSjNUWBJ8cMJI0SE3K.html|archive-date=23 April 2018|url-status=live}}

====Delhi Metro Expansion Phase-V====

Former DMRC managing director E. Sreedharan stated that by the time Phase IV is completed, the city will need Phase V to cope with increased population and transport needs. Following extensions are planned as part of Phase-V.

• {{anchor|BL1}}Delhi Blue Line Metro: Yamuna Bank to Loni
  From the existing Yamuna Bank metro station, the Blue Line will be further extended {{Convert|12|km|mi|abbr=on}} to the Loni on Delhi-Ghaziabad border in Phase-V.{{Cite web|url=https://www.indiatoday.in/india/north/story/delhi-metro-to-come-up-with-eight-new-corridors-in-phase-iv-194167-2014-05-24|title=Delhi Metro to come up with eight new corridors in Phase IV|website=India Today|date=24 May 2014 |language=en|access-date=4 August 2018}} See also Delhi Pink Line: Shiv Vihar-Loni extension below.
• Central Vista Loop Line (4 stations, including 1 existing)
  As part of Central Vista Redevelopment Project, this underground line with 4 stations, including the existing Central Secretariat metro station interchange of existing Yellow Line and Violet Line, by connecting the new government buildings coming up as part of the Central Vista Redevelopment project.{{Cite web|url=https://keralakaumudi.com/en/news/mobile/news.php?id=1153954&u=new-delhi-underground-metro-aims-to-transform-central-vista-by-2026-1153954 | title=New Delhi underground metro aims to transform Central Vista by 2026 }}
• Delhi Yellow Line: Samaypur Badli to Khera Kalan extension (3 stations, 2 new and 1 existing)
  From existing Samaypur Badli metro station to Khera Kalan in North Delhi via a proposed station at Siraspur has been proposed. This extension will have 2 new stations, Khera Kalan and Siraspur. A detailed project report (DPR) was prepared in 2024.{{Cite web |title=बादली-सिरसपुर मेट्रो कॉरिडोर की डीपीआर तैयार, छह महीने से सरकार से मंजूरी का इंतजार |url=https://navbharattimes.indiatimes.com/metro/delhi/development/dpr-of-badli-siraspur-metro-corridor-ready-and-now-awaiting-approval-from-government/articleshow/108834729.cms |access-date=2024-09-08 |website=Navbharat Times |language=hi}}
• Delhi Airport Air Train (IGI APM).
  It is a proposed Automated Peoples Mover (APM) at Indira Gandhi International Airport (IGI Airport) which will have 4 airside and 1 outside station, namely Terminal T1 air side station, Aerocity Business Park outside air side station, Aerocity air side station, Cargo Terminal outside air side station, T2&T3 air side station.{{Cite web |date=2023-09-30 |title=Delhi: Air Train To Be Introduced At Indira Gandhi International Airport, Authorities To Decide Between Two Options |url=https://english.jagran.com/india/delhi-air-train-to-be-introduced-at-indira-gandhi-international-airport-authorities-to-decide-between-two-options-10104129 |access-date=2024-09-08 |website=English Jagran |language=en}}

{{anchor | Har | Haryana }}

Bahadurgarh or Rohtak do not have own separate metro network, these cities in Haryana state are or will be connected to Delhi by the Delhi Metro.

• Delhi Green Line Metro: Bahadurgarh to Asaudha (studies and DPR done): from the existing Bahadurgarh (Brigadier Hoshiyar Singh metro station) to Asaudha (Asaudah railway station) has been approved, where it will interchange with Haryana Orbital Rail Corridor.[https://www.dnaindia.com/india/report-ncr-news-new-metro-link-from-gurugram-s-rezang-la-chowk-to-delhi-igi-airport-two-more-proposed-kmp-manesar-3026125 NCR news: New Metro link from Gurugram’s Rezang La Chowk to Delhi IGI Airport, two more proposed], DNA, 24 Feb 2023.
• Delhi Green Line Metro: Asaudha to Rohtak (studies done): further extension to Rohtak city.

Faridabad and Palwal do not have own separate metro network, these cities in Haryana state are or will be connected to Delhi by Delhi Metro Violet Line.

• Faridabad-Gurgram link (studied and DPR done): see below in Gurugram section.
• Delhi-Palwal extension (studied and DPR done): extension of Delhi Metro Violet Line.
• Palwal-Noida Airport extension (no studied done or approved): extension of Delhi Metro Violet Line.

Gurugram has own separate light metro network called the Rapid Metro Gurgaon, with the following several extensions planned:

• Inter-city links

{{anchor | GuruFarid }}

• Faridabad-Gurugram link (studies and DPR done): from the existing Bata Chowk metro station on Delhi Metro Violet Line to Gurugram Vatika Chowk".{{Cite web|date=10 September 2020|title=Survey complete for Gurugram-Faridabad metro link {{!}} Gurgaon News |url=https://timesofindia.indiatimes.com/city/gurgaon/survey-complete-for-gurgaon-fbd-metro-link/articleshow/78027860.cms|access-date=2021-09-16|website=The Times of India|language=en}}[https://metrorailnews.in/gurgaon-faridabad-metro-system-fostering-connectivity-economic-development-and-seamless-travel/ Gurgaon – Faridabad Metro System: Fostering Connectivity, Economic Development and Seamless Travel], metrorailnews.in, 7/1/2024.[https://navbharattimes.indiatimes.com/state/punjab-and-haryana/faridabad/haryana-budget-2025-intercity-express-metro-will-run-from-bata-chowk-in-faridabad-to-gurugram/articleshow/119137639.cms फरीदाबाद के बाटा चौक से गुरुग्राम के लिए चलेगी इंटरसिटी एक्सप्रेस मेट्रो, हरियाणा सरकार ने बजट में की घोषणा], navbharattimes, 18 Mar 2025.

{{anchor | GuruIGI}}

• Gurugram-IGI Airport link (studies and DPR done): from the Rezang La Chowk in Gurugram to the existing Delhi Yellow Line Dwarka Sector 21 station for the IGI Airport.[https://timesofindia.indiatimes.com/city/delhi/joy-after-long-wait-as-gurgaon-metro-gets-central-green-light/articleshow/100834637.cms Joy after long wait as Gurgaon Metro gets central green light], Times of India,

8 June 2023.

• Gurugram-Southeast Delhi link (no studies done or approved): from Vatika Chowk on SPR in southeast Gurugram to Mehrauli in southeast Delhi, not yet approved and no studies done yet.

• Intera-city links

{{anchor | GuruLoop}}

• Gurugram Metro Loop (studies and DPR done): from the existing Millennium City Centre Gurugram metro station to existing Cyber City station.{{Cite web|date=13 August 2020|title=Gurgaon Metro News: Haryana govt clears final DPR of Metro Rail Connection from HUDA City Centre to other parts of Gurugram {{!}} Gurgaon News |url=https://timesofindia.indiatimes.com/city/gurgaon/haryana-govt-clears-final-dpr-of-metro-rail-connection-from-huda-city-centre-to-other-parts-of-gurugram/articleshow/77529945.cms|access-date=2021-09-16|website=The Times of India|language=en}}[https://www.hindustantimes.com/cities/gurugram-news/hry-budget-focuses-on-ai-metro-and-infra-growth-in-gurugram-101742235304928.html Hry budget focuses on AI, metro, and infra growth in Gurugram], Hindustan Times, 1 Mar 2025. In March 2025, Haryana invited tenders to begin civil construction of 15 km section from Millennium City metro station to Sector 9 metro station.

• Radial lines within Gurugram such as the following:

{{anchor | GuruNS}}

• North-South link or Old Gurugram Metro (studies and DPR done): from Kapashera to Manesar-Panchgaon (Pachgaon to integrate with RRTS station and WPE).{{Cite news|url=https://timesofindia.indiatimes.com/city/chandigarh/tcp-dept-realigns-metro-route-linking-ggn-to-manesar/articleshow/57135101.cms|title=TCP department realigns metro route linking Gurgaon to Manesar |work=The Times of India|access-date=4 August 2018}}[http://www.dnaindia.com/india/report-expected-pm-narendra-modi-to-announce-metro-s-extension-to-other-parts-of-haryana-says-cm-bhupinder-hooda-2122498 Expected PM Narendra Modi to announce Metro's extension to other parts of Haryana, says CM Bhupinder Hooda] {{webarchive|url=https://web.archive.org/web/20161026081907/http://www.dnaindia.com/india/report-expected-pm-narendra-modi-to-announce-metro-s-extension-to-other-parts-of-haryana-says-cm-bhupinder-hooda-2122498|date=26 October 2016}}, DNA India News, September 2015.

{{anchor | GuruSS}}

• Southwest-South link, 17 km, DPR underway: from Gurgaon railway station, Rajiv Chowk, Vatika Chowk on SPR (Souther Peripheral Road), and Bhondsi,[https://timesofindia.indiatimes.com/city/gurgaon/rapid-rail-to-transform-commuting-multi-model-transit-hubs-proposed-in-gurgaon/articleshow/115540639.cms 5 Multimodel Hubs in Gurugram on Delhi-Alwar RRTS], India TImes, 22 Nov 2024. will connect to Metro extension from Millennium City Centre metro station at the Gurugram railway station and Delhi-Gurugram-Alwar RRTS line at Rajiv Chowk. In March 2025, Haryana invited tenders to hire consultant to prepare DPR for this route.[https://www.hindustantimes.com/cities/others/ggm-hmrtc-to-hire-consultant-for-2-new-metro-corridors-101742494383392.html Ggm: HMRTC to hire consultant for 2 new metro corridors], Hindustan Times, 21 March 2025.

{{anchor | GuruEW}}

• East-West link (no studies done or approved): from Gurugram Golf Course Extension Road to Gurugram Sector 5 along Sheetla Mata Road, with stations at Millennium City Centre Gurugram metro station (existing), Signature Tower crossing, Rana Pratap Chowk, and Atul Kataria Chowk. In March 2025, Haryana invited tenders to hire consultant to prepare DPR for this route.

Jhajjhar does not have own separate metro network, this city in Haryana state will be connected to Delhi in future by extension to the Delhi Metro.

• Delhi Grey Line Metro Phase-V: Dhansa-Jhajjhar extension (studies done): Delhi Metro Grey Line from the existing Dhansa Bus Stand in Najafgarh to Jhajjar City via Badli.{{Cite web|url=http://www.railnews.in/haryana-cm-announces-extension-of-delhi-metro-upto-jhajjar-town/|title=Haryana CM announces extension of Delhi Metro up to Jhajjar town – RailNews Media India Ltd|website=railnews.in|language=en-US|access-date=6 August 2018}}

• Gurugram-Jhajjhar Metro (no studies done or approved): as extension of Gurugram Metro via Badsa AIIMS and Badli.

Sonipat does not have own separate metro network, Sonepat city in Haryana state will be connected to Delhi in future through extensions to the Delhi Metro in the following two phases:

• Red Line Phase-IV Rithala-Narela-Nathupur extension (under-construction).
• Red Line Phase-V Nathupur-Sector7 extension (studies done):[https://www.dainiktribuneonline.com/news/haryana/there-is-hope-for-the-metro-line-to-be-extended-till-sonepat-sector-7/ मेट्रो लाइन का विस्तार सोनीपत सेक्टर-7 तक होने की उम्मीद बंधी], dainiktribuneonline, 16 Apr 2025.

{{anchor | UP}}

Following are the extensions of Delhi Metro as Ghaziabad does not have separate Metro network.

• {{anchor|PL1}}Delhi Pink Line: Shiv Vihar-Loni extension, from Shiv Vihar to Loni extension as part of Phase-V.{{Cite web|date=2020-01-01|title=Ghaziabad looks to extend three Metro lines, seeks DPRs|url=https://www.hindustantimes.com/cities/gzb-looks-to-extend-three-metro-lines-seeks-dprs/story-FOOPRCWXSa7UG1kC0LqUUJ.html|access-date=2021-09-16|website=Hindustan Times|language=en}} See also Delhi Blue Line Metro: Yamuna Bank to Loni above.
• Delhi Pink Line: Gokulpuri-Hindon Airport-Arthala extension, 13 km link from the existing Gokulpuri metro station of pink Line to the west Ghaziabad (existing Arthala metro station of Red Line metro) via Hindon Airport.[https://www.timesnownews.com/delhi/new-metro-line-to-connect-north-east-delhi-with-trans-hindon-area-in-ghaziabad-article-113263970 New Metro Line To Connect North-East Delhi With Trans Hindon Area In Ghaziabad], timesnownews.com, 11 Sept 2024.

{{main | Noida Metro }}

Noida has own separate network called Noida Metro, which connects to the Delhi Metro.

• Noida Aqua Line: Sector 51 - Knowledge Park-V extension.{{Cite web |date=2018-12-04 |title=Greater Noida Authority approves phase 2 of Aqua Line |url=https://www.moneycontrol.com/news/business/real-estate/greater-noida-authority-approves-phase-2-of-aqua-line-3253341.html |access-date=2023-11-30 |website=Moneycontrol |language=en}}
• Noida Film City-Noida Sector 142 PRT{{Cite news |title=Driverless pod car between Jewar airport & amusement park in Film City: Plan details|url=https://timesofindia.indiatimes.com/city/noida/prt-between-jewar-airport-amusement-park-in-film-city-plan-details/articleshow/85997138.cms |work=The Times of India |date=7 September 2021 |access-date=7 September 2021}}{{Cite web |date=2023-12-03 |title=Noida Metro: Extension Plan from Sector 142 to Botanical Garden Gains Momentum |url=https://www.news18.com/auto/noida-metro-extension-plan-from-sector-142-to-botanical-garden-gains-momentum-8689035.html |access-date=2023-12-20 |website=News18 |language=en}}{{Cite web |date=2023-12-01 |title=Noida Metro Submits Report For Approval Of 11.5-km Aqua Line extension. Check Areas It will Connect |url=https://www.timesnownews.com/delhi/noida-metro-submit-report-for-approval-of-11-5-km-aqua-line-extension-check-areas-it-will-connect-article-105640428 |access-date=2023-12-20 |website=TimesNow |language=en}}
• Greater Noida-Noida Airport Metro: from the existing Noida Sector 148 metro station on Noida Aqua Line to Noida International Airport.{{cite news |last1=Rajput |first1=Vinod |date=3 September 2021 |title=Metro corridor to link Capital, Jewar airport |url=https://www.hindustantimes.com/cities/others/metro-corridor-to-connect-noida-airport-and-delhi-s-igia-101630607174187.html |work=Hindustan Times |access-date=17 December 2023}}{{Cite news |last=Shalabh |date=9 April 2021 |title=Greater Noida to Jewar airport in less than 25 minutes? DMRC to ready plan |url=https://timesofindia.indiatimes.com/city/noida/gr-noida-to-jewar-airport-in-less-than-25-mins-dmrc-to-ready-plan/articleshow/81978375.cms |work=The Times of India |access-date=7 September 2021}}
• Ballabhgarh-Noida Airport Metro: From Ballabhgarh metro station on Delhi Metro Violet Line to Palwal and Jewar Airport.

Delhi RRTS system, a RapidX "Regional Rapid Transit System" (RRTS) which aims to connect Delhi with its neighbouring cities via eight lines of semi-high-speed trains operating at a maximum speed of {{Convert|160|km/h|abbr=on}}. Phase I of the project consists of three corridors: Delhi–Meerut, Delhi–Alwar, and Delhi–Panipat corridor. The Delhi–Meerut corridor, also known as the Delhi–Meerut RRTS, is currently under development by the National Capital Region Transport Corporation (NCRTC).{{Cite web |title=NCRTC {{!}} Delhi – Meerut Corridor |url=https://ncrtc.in/details/ |access-date= 11 June 2017 |website=ncrtc.in |language=en-US}}{{Cite news|url=https://www.ndtv.com/delhi-news/over-rs-30-000-crore-cleared-for-delhi-meerut-high-speed-rail-corridor-1996284|title=Delhi-Meerut rapid rail project gets green light| author=Staff Reporter| work=NDTV| access-date=20 February 2019|language=en}}{{cite news|title=India's first rapid rail to open next week, with women driving RAPIDX|url=https://www.constructionworld.in/transport-infrastructure/metro-rail-and-railways-infrastructure/indias-first-rapid-rail-to-open-next-week-with-women-driving-rapidx/45623|work=Construction World| date=12 October 2023| access-date=16 October 2023|language=en}}

The Delhi–Meerut RRTS is {{cvt|82.15|km}} long and costs {{INRConvert|30274|c}}. It will comprise 14 stations (with nine additional stations for the Meerut Metro) and two depots. Three of the 14 stations (Sarai Kale Khan, New Ashok Nagar, and Anand Vihar) will be in Delhi, and are planned for seamless integration with the Delhi Metro.{{cite web |url=https://ncrtc.in/details/ |title=Details - NCRTC |website=ncrtc.in |publisher=NCRTC |access-date=14 November 2023}}{{Cite web|title=Delhi–Meerut RRTS – Information, Route Map, Fares, Tenders & Updates|url=https://themetrorailguy.com/delhi-meerut-rrts-information-route-maps-fares-tenders-updates/ |website= themetrorailguy.com| publisher= The Metro Rail Guy |language=en-US| access-date= 16 October 2023}}

{{Main|Red Line (Delhi Metro)}}

File:New Delhi Metro.jpg

The Red Line, the first metro line opened, connects Rithala in the west to Shaheed Sthal (New Bus Adda) in the east for a distance of {{convert|34.55|km|mi}}.{{cite news|url=http://www.delhimetrotimes.in/delhi-metro-red-line.html|title=Delhi Metro Red Line|access-date=20 September 2016|url-status=live|archive-url=https://web.archive.org/web/20161005183547/http://www.delhimetrotimes.in/delhi-metro-red-line.html|archive-date=5 October 2016}} Partly elevated and partly at grade, it crosses the Yamuna River between the Kashmere Gate and Shastri Park stations.{{Cite news|url=https://timesofindia.indiatimes.com/city/delhi/On-May-2-Metro-to-cross-Yamuna-again/articleshow/4441285.cms?referral=PM|title=On May 2, Metro to cross the Yamuna again|date=24 April 2009|newspaper=The Times of India|access-date=16 January 2018|archive-url=https://web.archive.org/web/20150203232317/http://timesofindia.indiatimes.com/city/delhi/On-May-2-Metro-to-cross-Yamuna-again/articleshow/4441285.cms?referral=PM|archive-date=3 February 2015|url-status=live|location=New Delhi}} The opening of the first stretch on 24 December 2002, between Shahdara and Tis Hazari, crashed the ticketing system due to demand.{{cite press release |url=http://pib.nic.in/archieve/lreleng/lyr2002/rdec2002/24122002/r241220027.html |title=Prime Minister inaugurates Metro Rail services between Tis Hazari and Shahdara |publisher=Press Information Bureau, Government of India |date=24 December 2002 |access-date=29 March 2010 |url-status=live |archive-url=https://web.archive.org/web/20110721174826/http://pib.nic.in/archieve/lreleng/lyr2002/rdec2002/24122002/r241220027.html |archive-date=21 July 2011 }}{{Cite news|url=https://www.smh.com.au/articles/2002/12/26/1040511133673.html|title=Passengers swamp Delhi's new metro|date=27 December 2002|newspaper=The Sydney Morning Herald|access-date=16 January 2018|archive-url=https://web.archive.org/web/20180116141128/http://www.smh.com.au/articles/2002/12/26/1040511133673.html|archive-date=16 January 2018|url-status=live}} Subsequent sections were opened from Tis Hazari – Trinagar (later renamed Inderlok) on 4 October 2003,{{Cite news|url=https://timesofindia.indiatimes.com/city/delhi/70000-travel-by-Tri-Nagar-Tis-Hazari-Metro-rail/articleshow/216425.cms?referral=PM|title=70,000 travel by Tri Nagar-Tis Hazari Metro rail|date=5 October 2003|newspaper=The Times of India|access-date=16 January 2018|archive-url=https://web.archive.org/web/20180116200552/https://timesofindia.indiatimes.com/city/delhi/70000-travel-by-Tri-Nagar-Tis-Hazari-Metro-rail/articleshow/216425.cms?referral=PM|archive-date=16 January 2018|url-status=live|location=New Delhi}} Inderlok – Rithala on 31 March 2004, and Shahdara – Dilshad Garden on 4 June 2008.{{cite web |url=http://www.delhimetrorail.com/station-info.aspx |title=Metro Station Information |publisher=DMRC |access-date=29 March 2009 |url-status=live |archive-url=https://web.archive.org/web/20100918092841/http://www.delhimetrorail.com/station-info.aspx |archive-date=18 September 2010 }} The Red Line has interchanges at Kashmere Gate with the Yellow and Violet Lines, at Inderlok with the Green Line, and at Netaji Subhash Place and Welcome with the Pink Line. An interchange with the Blue Line at Mohan Nagar is planned. Six-coach trains were commissioned on the line on 24 November 2013.{{cite news|url=https://timesofindia.indiatimes.com/city/delhi/DMRC-to-introduce-six-coach-trains-on-Dilshad-Garden-Rithala-line-on-Sunday/articleshow/26278242.cms?referral=PM|title=DMRC to introduce six-coach trains on Dilshad Garden-Rithala line on Sunday|date=23 November 2013|newspaper=The Times of India|access-date=16 January 2018|archive-url=https://web.archive.org/web/20150204191346/http://timesofindia.indiatimes.com/city/delhi/DMRC-to-introduce-six-coach-trains-on-Dilshad-Garden-Rithala-line-on-Sunday/articleshow/26278242.cms?referral=PM|archive-date=4 February 2015|url-status=live|location=New Delhi}} An extension from Dilshad Garden to Shaheed Sthal (New Bus Adda) opened on 8 March 2019. The metro introduced a set of two eight-coach trains on the Red Line, converted from the existing fleet of 39 six-coach trains, in November 2022.{{cite news|url=https://timesofindia.indiatimes.com/city/delhi/eight-coach-trains-introduced-on-red-line-delhi-metro/articleshow/95376369.cms|title=Eight-coach trains introduced on Red line: Delhi Metro|newspaper=The Times of India |date=8 November 2022 }}

{{Main|Yellow Line (Delhi Metro)}}

File:DelhiMetroYellowLine2.JPG

File:Delhi metro train.jpg

The Yellow Line, the metro's second line, was its first underground line.{{Cite news|url=https://timesofindia.indiatimes.com/city/delhi/A-subterranean-journey-begins/articleshow/964370.cms?referral=PM|title=A subterranean journey begins|date=20 December 2004|newspaper=The Times of India|access-date=22 January 2018|archive-url=https://web.archive.org/web/20180303140135/https://timesofindia.indiatimes.com/city/delhi/A-subterranean-journey-begins/articleshow/964370.cms?referral=PM|archive-date=3 March 2018|url-status=live|location=New Delhi}} Running {{convert|49|km|mi}} north to south, it connects Samaypur Badli with Millennium City Centre Gurugram in Gurugram. The northern and southern parts of the line are elevated, and the central section (which passes through some of the most congested parts of Delhi) is underground. The underground section between Vishwa Vidyalaya and Kashmere Gate opened on 20 December 2004; the Kashmere Gate – Central Secretariat section opened on 3 July 2005, and Vishwa Vidyalaya – Jahangirpuri on 4 February 2009. The line has India's second-deepest metro station{{cite web|url=http://www.railnews.co.in/delhi-metro-museum-celebrates-3rd-anniversary-unveils-exhibitations-at-7-metro-stations-organise-quiz-competition-for-homeless-children/|title=Delhi Metro Museum Celebrates 3rd Anniversary|website=RailNews Media India Ltd|url-status=live|archive-url=https://web.archive.org/web/20140911210823/http://www.railnews.co.in/delhi-metro-museum-celebrates-3rd-anniversary-unveils-exhibitations-at-7-metro-stations-organise-quiz-competition-for-homeless-children/|archive-date=11 September 2014}} at Chawri Bazar, {{convert|25|m|ft}} below ground level.{{cite news|url=http://indianexpress.com/article/cities/delhi/hauz-khas-set-to-get-deepest-underground-metro-station-by-march-2016/|title=Hauz Khas set to get deepest underground metro station by March 2016|date=16 September 2014|newspaper=The Indian Express|access-date=22 January 2018|archive-url=https://web.archive.org/web/20180116004233/http://indianexpress.com/article/cities/delhi/hauz-khas-set-to-get-deepest-underground-metro-station-by-march-2016/|archive-date=16 January 2018|url-status=live|location=New Delhi}}

An additional stretch from Qutab Minar to Millennium City Centre Gurugram, initially operating separately from the mainline, opened on 21 June 2010; the Chhatarpur station on this stretch opened on 26 August of that year. Due to delays in acquiring land to construct the station, it was built with prefabricated structures in nine months and is the only Delhi Metro station made completely of steel.{{Cite press release|title=Chhattarpur Metro Station To Become Operational From Tomorrow|date=25 August 2010|publisher=Delhi Metro Rail Corporation|location=New Delhi|url=http://www.delhimetrorail.com/press_reldetails.aspx?id=IT8bnclZM5cBAlld|access-date=22 January 2018|url-status=live|archive-url=https://web.archive.org/web/20171107004026/http://www.delhimetrorail.com/press_reldetails.aspx?id=IT8bnclZM5cBAlld|archive-date=7 November 2017}}{{Cite news|url=https://timesofindia.indiatimes.com/city/delhi/Chattarpur-station-to-open-today/articleshow/6435360.cms?referral=PM|title=Chattarpur station to open today|date=26 August 2010|newspaper=The Times of India|access-date=22 January 2018|archive-url=https://web.archive.org/web/20180303140135/https://timesofindia.indiatimes.com/city/delhi/Chattarpur-station-to-open-today/articleshow/6435360.cms?referral=PM|archive-date=3 March 2018|url-status=live|location=New Delhi}} The connecting link between Central Secretariat and Qutub Minar opened on 3 September 2010.{{cite news|url=http://www.sify.com/news/gurgaon-gets-a-lifeline-as-cst-qutub-corridor-opens-news-national-kjduEhecbaj.html|title=Gurgaon gets a lifeline as CST-Qutub corridor opens|date=8 September 2010|newspaper=Sify News|access-date=22 January 2018|archive-url=https://web.archive.org/web/20171116122608/http://www.sify.com/news/gurgaon-gets-a-lifeline-as-cst-qutub-corridor-opens-news-national-kjduEhecbaj.html|archive-date=16 November 2017|url-status=dead}}

On 10 November 2015, the line was further extended between Jahangirpuri and Samaypur Badli in Outer Delhi.{{cite news |title=The Jahangirpuri- Samaypur Badli section (Extension of Line-2) |url=http://www.delhimetrorail.com/press_reldetails.aspx?id=wELDXDv2xz0lld |access-date=9 November 2015 |publisher=Delhi Metro |url-status=live |archive-url=https://web.archive.org/web/20151113010320/http://www.delhimetrorail.com/press_reldetails.aspx?id=wELDXDv2xz0lld |archive-date=13 November 2015 }} Interchanges are available with the Red Line and Kashmere Gate ISBT at Kashmere Gate, with the Blue Line at Rajiv Chowk, with the Violet Line at Kashmere Gate and Central Secretariat, with the Airport Express at New Delhi, with the Pink Line at Azadpur and Dilli Haat - INA, with the Magenta Line at Hauz Khas, with Rapid Metro Gurgaon at Sikanderpur, and with Indian Railways at Chandni Chowk and New Delhi.{{Cite news|url=https://timesofindia.indiatimes.com/city/delhi/New-Delhi-Metro-station-your-connect-with-National-rail/articleshow/1154950.cms?referral=PM|title=New Delhi Metro station, your connect with National rail|last=Sharma|first=Nidhi|date=29 June 2005|newspaper=The Times of India|access-date=22 January 2018|archive-url=https://web.archive.org/web/20180122191746/https://timesofindia.indiatimes.com/city/delhi/New-Delhi-Metro-station-your-connect-with-National-rail/articleshow/1154950.cms?referral=PM|archive-date=22 January 2018|url-status=live|location=New Delhi}}{{cite news|url=http://www.thehindu.com/2005/07/01/stories/2005070111420400.htm|title=Secretariat to DU in 18 minutes flat|date=1 July 2005|newspaper=The Hindu|access-date=22 January 2018|archive-url=https://web.archive.org/web/20160201164123/http://www.thehindu.com/2005/07/01/stories/2005070111420400.htm|archive-date=1 February 2016|url-status=dead}}

The Yellow Line is the metro's first line to replace four-coach trains with six- and eight-coach configurations. The Metro Museum at Patel Chowk metro station, South Asia's only rapid-transit museum, has a collection of display panels, historical photographs and exhibits tracing the genesis of the Delhi Metro.{{Cite web |title=Metro Museum |url=https://museum.delhimetrorail.com/ |access-date=2022-07-21 |website=museum.delhimetrorail.com}} The museum was opened on 1 January 2009.

{{Main|Blue Line (Delhi Metro)}}

File:DelhiMetroBlueLineBombardier.jpg

The Blue Line, the third line of the metro open, was the first to connect areas outside Delhi.{{cite news |url=http://www.dnaindia.com/india/report_metro-enters-noida-set-to-change-travelling-habits-of-people_1310610 |title=Metro enters Noida, set to change travelling habits of people |newspaper=Daily News and Analysis |date=12 November 2009 |access-date=12 January 2009 |url-status=live |archive-url=https://web.archive.org/web/20120401164052/http://www.dnaindia.com/india/report_metro-enters-noida-set-to-change-travelling-habits-of-people_1310610 |archive-date=1 April 2012 }} Mainly elevated and partly underground,{{Cite news |url=http://articles.timesofindia.indiatimes.com/2005-12-28/delhi/27852475_1_delhi-metro-metro-line-barakhamba-station |archive-url=https://archive.today/20130126065324/http://articles.timesofindia.indiatimes.com/2005-12-28/delhi/27852475_1_delhi-metro-metro-line-barakhamba-station |url-status=dead |archive-date=26 January 2013 |title=Metro to travel underground and overhead |website=The Times of India |date=28 December 2005 |access-date=4 April 2010}} it connects Dwarka Sub City in the west with the satellite city of Noida in the east for a distance of {{convert|56.61|km|mi}}. The line's first section, between Dwarka and Barakhamba Road, opened on 31 December 2005, and subsequent sections opened between Dwarka – Dwarka Sector 9 on 1 April 2006, Barakhamba Road – Indraprastha on 11 November 2006, Indraprastha – Yamuna Bank on 10 May 2009, Yamuna Bank – Noida City Centre on 12 November 2009, and Dwarka Sector 9 – Dwarka Sector 21 on 30 October 2010. The line crosses the Yamuna River between the Indraprastha and Yamuna Bank stations, and has India's second extradosed bridge across the Northern Railways mainlines near Pragati Maidan.{{cite news |author=Gaurav Vivek Bhatnagar |url=http://www.hindu.com/2006/11/12/stories/2006111212620100.htm |title=Delhi Metro just got bigger and better |date=12 November 2006 |access-date=4 April 2010 |url-status=dead |archive-url=https://web.archive.org/web/20110629014624/http://www.hindu.com/2006/11/12/stories/2006111212620100.htm |newspaper=The Hindu |archive-date=29 June 2011 }}

A branch of the Blue Line, inaugurated on 8 January 2010, runs for {{convert|6.25|km|mi}} from the Yamuna Bank station to Anand Vihar in East Delhi.{{Cite news |url=http://economictimes.indiatimes.com/news/news-by-industry/transportation/railways/Anand-Vihar-Metro-line-opens-for-public/articleshow/5419382.cms |title=Delhi Anand Vihar Metro line opens for public |newspaper=The Economic Times |date=7 January 2010 |access-date=8 January 2010 |url-status=dead |archive-url=https://web.archive.org/web/20100110055534/http://economictimes.indiatimes.com/News/News-By-Industry/Transportation/Railways/Anand-Vihar-Metro-line-opens-for-public/articleshow/5419382.cms |archive-date=10 January 2010 }} It was extended to Vaishali on 14 July 2011.{{Cite press release |url=http://www.delhimetrorail.com/press_reldetails.aspx?id=ibd0tm2x1GAlld |title=Anand Vihar – Vaishali Section To Open For Passenger Services From 14th July 2011 |publisher=DMRC |date=13 July 2011 |url-status=live |archive-url=https://web.archive.org/web/20110727190330/http://www.delhimetrorail.com/press_reldetails.aspx?id=ibd0tm2x1GAlld |archive-date=27 July 2011 }} A {{convert|2.76|km|mi|adj=on}} stretch from Dwarka Sector 9 to Dwarka Sector 21 opened on 30 October 2010.{{Cite press release |url=http://www.delhimetrorail.com/press_reldetails.aspx?id=qZpXzaO5CaMlld |title=Press Release: DMRC Extends Metro Services To Dwarka Sector 21 on Line-3 |publisher=DMRC |date=30 October 2010 |access-date=30 October 2010 |url-status=live |archive-url=https://web.archive.org/web/20101123032157/http://delhimetrorail.com/press_reldetails.aspx?id=qZpXzaO5CaMlld |archive-date=23 November 2010 }} On 9 March 2019, a {{Cvt|6.67|km|adj=on}} extension from Noida City Centre to Noida Electronic City was opened by Prime Minister Narendra Modi.{{Cite web|url=https://www.timesnownews.com/business-economy/industry/article/pm-modi-flags-off-noida-city-centre-noida-electronic-city-section-of-delhi-metro-s-blue-line/379517|title=PM Modi flags off Noida City Centre-Noida Electronic City section of Delhi Metro 's Blue Line {{!}} Business News|website=timesnownews.com|date=9 March 2019 |language=en-GB|access-date=20 March 2019}} Interchanges are available with the Aqua Line (Noida Metro) Noida Sector 51 station at Noida Sector 52, with the Yellow Line at Rajiv Chowk, with the Green Line at Kirti Nagar, with the Violet Line at Mandi House, with the Airport Express at Dwarka Sector 21, with the Pink Line at Rajouri Garden, Mayur Vihar Phase-I, Karkarduma and Anand Vihar, with the Magenta Line at Janakpuri West and Botanical Garden, and with Indian Railways and the Interstate Bus Station (ISBT) at Anand Vihar station (which connects with Anand Vihar Railway Terminal and Anand Vihar ISBT).{{cite news |url=http://news.outlookindia.com/item.aspx?672357 |title=40000 Footfalls at Anand Vihar Metro on Day 1 |newspaper=Outlook India |date=7 January 2010 |access-date=4 April 2010 |url-status=dead |archive-url=https://web.archive.org/web/20100117171326/http://news.outlookindia.com/item.aspx?672357 |archive-date=17 January 2010 }} An interchange with the Red Line at Mohan Nagar is planned.

{{Main|Green Line (Delhi Metro)}}

File:Green Line Delhi metro.jpg

Opened in 2010, the Green Line (Line 5) is the metro's fifth and its first standard-gauge line; the others were broad gauge. It runs between Inderlok (a Red Line station) and Brigadier Hoshiyar Singh, with a branch line connecting its Ashok Park Main station with Kirti Nagar on the Blue Line. The elevated line, built as part of Phase II, runs primarily along the busy NH 10 route in West Delhi. It has 24 stations, including an interchange, and covers {{convert|29.64|km|abbr=on}}. The line has India's first standard-gauge maintenance depot, at Mundka.{{cite news|url=http://www.thehindu.com/news/cities/Delhi/Metro-gets-first-standard-gauge-depot/article16816399.ece|title=Metro gets first standard gauge depot|date=23 February 2010|newspaper=The Hindu|access-date=16 January 2018|location=New Delhi}}

It opened in two stages, with the {{convert|15.1|km|4=2|adj=on}} Inderlok–Mundka section opening on 3 April 2010 and the {{convert|3.5|km|4=2|adj=on}} Kirti Nagar–Ashok Park Main branch line opening on 27 August 2011. On 6 August 2012, to improve commuting in the National Capital Region, the government of India approved an extension from Mundka to Bahadurgarh in Haryana. The {{convert|11.18|km|adj=on}} stretch has seven stations (Mundka Industrial Area, Ghevra, Tikri Kalan, Tikri Border, Pandit Shree Ram Sharma, Bahadurgarh City and Brigadier Hoshiyar Singh) between Mundka and Bahadurgarh, and opened on 24 June 2018. Interchanges are available with the Red Line at Inderlok, the Blue Line at Kirti Nagar and the Pink Line at Punjabi Bagh West.

{{Main|Violet Line (Delhi Metro)}}

File:DelhiMetroVioletLine.JPG

The Violet Line is the sixth metro line opened and the second standard-gauge corridor, after the Green Line. The {{convert|47|km|mi|adj=mid|-long}} line connects Raja Nahar Singh in Ballabgarh via Faridabad to Kashmere Gate in New Delhi, with {{convert|26|km|mi|abbr=on}} overhead and the rest underground. The first section between Central Secretariat and Sarita Vihar opened on 3 October 2010, hours before the inaugural ceremony of the 2010 Commonwealth Games, and connects Jawaharlal Nehru Stadium (the venue for the games' opening and closing ceremonies).{{cite news|url=https://www.yahoo.com/news/now-metro-central-secretariat-sarita-vihar-too.html|title=Metro from Central Secretariat to Sarita Vihar too|date=3 October 2010|newspaper=Yahoo! News|access-date=16 January 2018|archive-url=https://web.archive.org/web/20180116193521/https://www.yahoo.com/news/now-metro-central-secretariat-sarita-vihar-too.html|archive-date=16 January 2018|url-status=live|location=New Delhi}} Completed in 41 months, it includes a {{convert|100|m|ft|adj=mid|-long}} bridge over the Indian Railways mainlines and a {{convert|167.5|m|ft|adj=mid|-long}} cable-stayed bridge across a road flyover; it connects several hospitals, tourist attractions, and an industrial estate. Service is provided at five-minute intervals.{{Cite web|url=https://timesofindia.indiatimes.com/home/Train-services-on-Delhi-Metros-Central-Secretariat-to-Sarita-Vihar-section-will-start-one-hour-late-from-7-am-from-October-17-to-October-24-for-integration-of-the-section-with-the-extension-to-Badarpur-/articleshow/6759388.cms|title=Train services on Delhi Metro's Central Secretariat to Sarita Vihar section will start one hour late (from 7 am) from October 17 to October 24 for integration of the section with the extension to Badarpur.|last=Suri|first=Megha|date=16 October 2010|website=The Times of India|archive-url=https://web.archive.org/web/20180116200533/https://timesofindia.indiatimes.com/home/Train-services-on-Delhi-Metros-Central-Secretariat-to-Sarita-Vihar-section-will-start-one-hour-late-from-7-am-from-October-17-to-October-24-for-integration-of-the-section-with-the-extension-to-Badarpur-/articleshow/6759388.cms|archive-date=16 January 2018|url-status=live|access-date=16 January 2018}} An interchange with the Yellow Line is available at Central Secretariat through an integrated concourse. On 14 January 2011, the remaining portion from Sarita Vihar to Badarpur was opened; this added three new stations to the network.{{cite news |url=http://www.hindustantimes.com/India-news/NewDelhi/DMRC-opens-Sarita-Vihar-Badarpur-section/Article1-650172.aspx |title=DMRC opens Sarita Vihar–Badarpur section |newspaper=Hindustan Times |date=14 January 2011 |access-date=14 January 2011 |url-status=dead |archive-url=https://web.archive.org/web/20121020000826/http://www.hindustantimes.com/India-news/NewDelhi/DMRC-opens-Sarita-Vihar-Badarpur-section/Article1-650172.aspx |archive-date=20 October 2012 }}

The section between Mandi House and Central Secretariat was opened on 26 June 2014, and a {{convert|971|m|ft|adj=mid|-long}} section between ITO and Mandi House was opened on 8 June 2015. A {{convert|14|km|mi|abbr=on}} extension south to Escorts Mujesar in Faridabad was inaugurated by Prime Minister Narendra Modi on 6 September 2015.{{cite news |title=Janpath to Faridabad: On Sunday morning, a Metro ride for PM Modi |url=http://www.hindustantimes.com/newdelhi/pm-modi-boards-delhi-metro-to-inaugurate-violet-line-extension-to-faridabad/article1-1387944.aspx |access-date=6 September 2015 |agency=Press Trust of India |website=Hindustan Times |date=6 September 2015 |url-status=live |archive-url=https://web.archive.org/web/20150906094002/http://www.hindustantimes.com/newdelhi/pm-modi-boards-delhi-metro-to-inaugurate-violet-line-extension-to-faridabad/article1-1387944.aspx |archive-date=6 September 2015 }} All nine stations on the Badarpur–Escorts Mujesar (Faridabad) section of the metro's Phase III received the highest rating (platinum) for adherence to green-building norms from the Indian Green Building Council (IGBC). The awards were given to DMRC Managing Director Mangu Singh by IGBC chair P. C. Jain on 10 September 2015.{{cite web |title=Faridabad Metro Stations get highest Green Building Rating |url=http://www.delhimetrorail.com/press_reldetails.aspx?id=FghLyznclJwZklld |url-status=live |archive-url=https://web.archive.org/web/20151208083221/http://www.delhimetrorail.com/press_reldetails.aspx?id=FghLyznclJwZklld |archive-date=8 December 2015 |website=delhimetrorail.com}}

The line's Faridabad corridor is the longest corridor outside Delhi: 11 stations and {{convert|17|km|abbr=on}}.{{cite web|url=http://www.hindustantimes.com/delhi-news/ncr-s-longest-metro-line-in-faridabad/story-47VYXeZgAksDPwwb4zBQjK.html|title=NCR's longest Metro line in Faridabad|last=Ray|first=Subhendu|date=23 January 2012|website=Hindustan Times|location=Delhi|archive-url=https://web.archive.org/web/20180303140135/https://www.hindustantimes.com/delhi-news/ncr-s-longest-metro-line-in-faridabad/story-47VYXeZgAksDPwwb4zBQjK.html|archive-date=3 March 2018|url-status=live|access-date=16 January 2018}} On 28 May 2017, the ITO–Kashmere Gate corridor was opened by Union Minister of Urban Development Venkaiah Naidu and Chief Minister of Delhi Arvind Kejriwal. The underground section is popularly known as the Heritage Line.{{cite web|url=http://indianexpress.com/article/cities/delhi/delhi-kashmere-gate-set-to-become-biggest-interchange-station-4674136/|title=Delhi: Kashmere Gate set to become biggest interchange station|date=26 May 2017|website=The Indian Express|location=New Delhi|archive-url=https://web.archive.org/web/20170825232428/http://indianexpress.com/article/cities/delhi/delhi-kashmere-gate-set-to-become-biggest-interchange-station-4674136/|archive-date=25 August 2017|url-status=live|access-date=15 January 2018}}{{cite book |last=Dayal |first=Anuj |author-link= |date=5 April 2018 |title=Delhi Metro - Phase 3 Challenges |location=New Delhi |publisher=Delhi Metro Rail Corporation}}{{rp|16}} Interchanges are available with the Red Line at Kashmere Gate, with the Yellow Line at Kashmere Gate and Central Secretariat, with the Blue Line at Mandi House, with the Pink Line at Lajpat Nagar and with the Magenta Line at Kalkaji Mandir.

{{Main|Airport Express Line (Delhi Metro)}}

File:Delhi Metro Airport Express.jpg

File:DelhiMetro AirportExpress 20111214.jpg

The Airport Express line runs {{convert|22.7|km|mi|abbr=on}} from New Delhi to Yashobhoomi Dwarka Sector - 25, linking the New Delhi railway station and Indira Gandhi International Airport. The line was operated by Delhi Airport Metro Express Pvt. Limited (DAMEL), a subsidiary of Reliance Infrastructure (the line's concessionaire until 30 June 2013). It is now operated by DMRC.{{cite news|url=https://timesofindia.indiatimes.com/city/delhi/Hawk-eyed-vigil-on-airport-metro-line/articleshow/6321859.cms?referral=PM|title=Hawk-eyed vigil on airport metro line|last=Singh|first=Megha Suri|date=17 August 2010|newspaper=The Times of India|access-date=16 January 2018|archive-url=https://web.archive.org/web/20180116195012/https://timesofindia.indiatimes.com/city/delhi/Hawk-eyed-vigil-on-airport-metro-line/articleshow/6321859.cms?referral=PM|archive-date=16 January 2018|url-status=live|location=New Delhi}} The line was built at a cost of {{INRConvert|57|b}}, of which Reliance Infrastructure invested {{INRConvert|28.85|b}} and will pay fees in a revenue-share model.{{cite magazine |url=https://www.railwaygazette.com/nc/news/single-view/view/delhi-airport-express-rail-link-opens.html |title=Delhi Airport Express rail link opens |magazine=Railway Gazette International | archive-url=https://web.archive.org/web/20191203153334/https://www.railwaygazette.com/nc/news/single-view/view/delhi-airport-express-rail-link-opens.html |archive-date=3 December 2019 |access-date=27 April 2022 }} It has six stations (Dhaula Kuan and Delhi Aerocity became operational on 15 August 2011), and some have check-in facilities, parking, and eateries.{{cite news|url=http://archive.indianexpress.com/news/airport-express-link-metro-gives-a-preview/537817/0|title=Airport Express Link: Metro gives a preview|date=6 November 2009|newspaper=The Indian Express|access-date=16 January 2018|archive-url=https://web.archive.org/web/20160201164122/http://archive.indianexpress.com/news/airport-express-link-metro-gives-a-preview/537817/0|archive-date=1 February 2016|url-status=live|location=New Delhi}} Rolling stock consists of six-coach trains, operating at ten-minute intervals, with a maximum speed of {{convert|120|km/h|mph|abbr=on}}.

Originally scheduled to open before the 2010 Commonwealth Games, the line failed to obtain the mandatory safety clearance and was opened on 23 February 2011 after a delay of about five months. Sixteen months after beginning operations, it was shut down for viaduct repairs on 7 July 2012.{{cite news |url=http://www.ndtv.com/article/cities/airport-metro-misses-cwg-deadline-56656 |title=Airport Metro misses CWG deadline |publisher=NDTV |date=3 October 2010 |access-date=9 November 2010 |url-status=live |archive-url=https://web.archive.org/web/20101006063255/http://www.ndtv.com/article/cities/airport-metro-misses-cwg-deadline-56656 |archive-date=6 October 2010 }}{{cite news |url=http://www.thehindu.com/news/cities/Delhi/article1477411.ece |title=Cities / Delhi : Airport to be 20 minutes from Connaught Place from Wednesday |newspaper=The Hindu |date=21 February 2011 |access-date=24 October 2011 |url-status=dead |archive-url=https://web.archive.org/web/20110928001539/http://www.thehindu.com/news/cities/Delhi/article1477411.ece |archive-date=28 September 2011 }} The line reopened on 22 January 2013.{{cite news|url=http://www.livemint.com/Politics/hzMT4yr6aK1KXw9Y7S2ArJ/Delhi-Airport-Metro-Express-back-on-track.html|title=Delhi Airport Metro Express back on track|date=22 January 2013|newspaper=Livemint|access-date=16 January 2018|url-status=live|publisher=HT Media Ltd|location=New Delhi|archive-url=https://web.archive.org/web/20180117011820/http://www.livemint.com/Politics/hzMT4yr6aK1KXw9Y7S2ArJ/Delhi-Airport-Metro-Express-back-on-track.html|archive-date=17 January 2018}} On 27 June 2013, Reliance Infrastructure told DMRC that they were unable to operate the line beyond 30 June of that year. DMRC took over the line on 1 July 2013 with a 100-person operations and maintenance team.{{cite news |url=http://www.thehindu.com/news/cities/Delhi/delhi-metro-takes-over-operations-of-airport-express-line/article4869374.ece |title=Delhi Metro takes over operations of Airport Express Line |newspaper=The Hindu |date=1 July 2013 |access-date=5 July 2013 |url-status=live |archive-url=https://web.archive.org/web/20130704044343/http://www.thehindu.com/news/cities/Delhi/delhi-metro-takes-over-operations-of-airport-express-line/article4869374.ece |archive-date=4 July 2013 }} In January 2015, DMRC reported that the line's ridership had increased about 30 percent after a fare reduction of up to 40 percent the previous July.{{cite news |url=http://www.business-standard.com/article/pti-stories/airport-metro-sees-30-rise-in-ridership-after-fare-reduction-115010400104_1.html |title=Airport Metro sees 30% rise in ridership after fare reduction |newspaper=Business Standard |date=1 January 2015 |access-date=19 January 2015 |url-status=live |archive-url=https://web.archive.org/web/20150107175025/http://www.business-standard.com/article/pti-stories/airport-metro-sees-30-rise-in-ridership-after-fare-reduction-115010400104_1.html |archive-date=7 January 2015 }} DMRC announced a further fare reduction on 14 September 2015, with a maximum fare of ₹60 and minimum of ₹10 instead of ₹100 and ₹20.{{cite news |url=https://timesofindia.indiatimes.com/city/delhi/DMRC-to-reduce-Airport-line-fares/articleshow/48969098.cms |title=DMRC to reduce Airport line fares |newspaper=The Times of India |date=15 September 2015 |access-date=15 September 2015 |url-status=live |archive-url=https://web.archive.org/web/20150918093517/http://timesofindia.indiatimes.com/city/delhi/DMRC-to-reduce-Airport-line-fares/articleshow/48969098.cms |archive-date=18 September 2015 }} DMRC said that this was done to reduce crowding on the Blue Line, diverting some Dwarka-bound passengers to the Airport Express Line (which is underutilised and faster than the Blue Line. The line's speed was increased from {{Convert|100|km/h|abbr=on}} to {{Convert|110|km/h|abbr=on}} on 24 June 2023, enabling a 16-minute ride from New Delhi to IGI Airport.

Interchanges are available with the Yellow Line at New Delhi, with the Blue Line at Dwarka Sector 21, with the Durgabai Deshmukh South Campus metro station of the Pink Line at Dhaula Kuan, and with Indian Railways at New Delhi. An expansion of Dwarka Sector 25 was inaugurated on 17 September 2023 with the opening of the adjacent India International Convention Centre.{{Cite web |title=PM Modi Inaugurates Delhi Metro Airport Express Line Extension, Takes Ride To YashoBhoomi |url=https://zeenews.india.com/railways/pm-modi-inaugurates-delhi-metro-airport-express-line-extension-takes-ride-to-yashobhoomi-2663518.html |access-date=2023-09-17 |website=Zee News |language=en}}

{{Main|Pink Line (Delhi Metro)}}

File:A Hyundai-Rotem coach of Delhi Metro's Pink Line at Mayur Vihar-I metro station.jpg coach on the Pink Line at the Mayur Vihar-I station]]

The Pink Line is the second new line of the Delhi Metro's third phase. It was opened on 14 March 2018, with an extension opening on 6 August. The Trilokpuri Sanjay Lake-to-Shiv Vihar section was opened on 31 October, and the Lajpat Nagar-to-Mayur Vihar Pocket I section opened on 31 December of that year. The final section, between Mayur Vihar Pocket I and Trilokpuri Sanjay Lake, was opened on 6 August 2021 after delays due to land-acquisition and rehabilitation issues.{{Cite news| date=6 August 2021| title=Delhi Metro Pink Line's Trilokpuri Sanjay Lake-Mayur Vihar Pocket-1 stretch inaugurated| language=en-IN| work=The Hindu| url=https://www.thehindu.com/news/cities/Delhi/delhi-metro-pink-lines-trilokpuri-sanjay-lake-mayur-vihar-pocket-1-stretch-inaugurated/article35759836.ece| access-date= 14 November 2023 }}

The Pink Line has 38 stations from Majlis Park to Shiv Vihar, both in North Delhi. With a length of {{convert|58.43|km|mi}}, it is the Delhi Metro's longest line. The mostly elevated line covers Delhi in a U-shaped pattern. It is also known as the Ring Road Line, since it runs along the busy Ring Road.{{rp|86}}

The line has interchanges with most of the metro's other lines, including with the Red Line at Netaji Subhash Place and Welcome, with the Yellow Line at Azadpur and Dilli Haat – INA, with the Blue Line at Rajouri Garden, Mayur Vihar Phase-I, Anand Vihar and Karkarduma, with the Green Line at Punjabi Bagh West, with Dhaula Kuan of the Airport Express at Durgabai Deshmukh South Campus, with the Violet Line at Lajpat Nagar, with Indian Railways at Hazrat Nizamuddin and Anand Vihar Terminal, and the ISBTs at Anand Vihar and Sarai Kale Khan. The Pink Line reaches the Delhi Metro's highest point at Dhaula Kuan{{snd}}{{convert|23.6|m|ftin}}, passing over the Dhaula Kuan grade-separator flyovers and the Airport Express Line.{{cite web|url=http://indianexpress.com/article/cities/delhi/new-high-for-metro-with-track-at-24m/|title=New high for Metro with the track at 24m|date=26 September 2014|work=The Indian Express}}{{rp|87}}

{{Main|Magenta Line (Delhi Metro)}}

File:Delhi Metro - Magenta Line.jpg

File:Metro in Botanical Garden station of the Magenta line network of Delhi Metro.jpg train at the Botanical Garden metro station]]

The Magenta Line is the Delhi Metro's first new line of its third phase. The Botanical Garden-to-Kalkaji Mandir section opened on 25 December 2017, and the remainder of the line opened on 28 May 2018.

It has 26 stations, from Krishna Park Extension to Botanical Garden. The line directly connects to Terminal 1D of Indira Gandhi International Airport. The Hauz Khas station on this line and the Yellow Line is the deepest metro station, at a depth of {{convert|29|m|ft}}.{{Cite news|first=Sumegha|last=Gulati|url=https://indianexpress.com/article/cities/delhi/hauz-khas-set-to-get-deepest-underground-metro-station-by-march-2016/|title=Hauz Khas set to get deepest underground metro station|work=The Indian Express|date=2014-09-16|access-date=2022-04-30}} The Magenta Line has interchanges with the Yellow Line at Hauz Khas, with the Blue Line at Janakpuri West and Botanical Garden, and with the Violet Line at Kalkaji Mandir. India's first driverless train service began on the Magenta Line in December 2020.{{Cite web|date=28 December 2020|title=First driverless metro in Delhi: All you need to know about Magenta line|url=https://www.indiatoday.in/information/story/first-driverless-metro-in-delhi-all-you-need-to-know-about-magenta-line-1753774-2020-12-28|access-date=2021-09-30|website=India Today|language=en}}

{{Main|Grey Line (Delhi Metro)}}

File:GL 2.jpg

The Grey Line (also known as Line 9), the metro's shortest, runs from Dwarka to Dhansa Bus Stand in western Delhi. The {{convert|4.295|km|abbr=on|adj=on}} line has four stations (Dhansa Bus Stand, Najafgarh, Nangli and Dwarka), and has an interchange with the Blue Line at Dwarka. The Najafgarh-to-Dwarka section was opened on 4 October 2019. The extension to Dhansa Bus Stand was scheduled to open in December 2020, but construction was delayed by the COVID-19 pandemic; it opened on 18 September 2021.{{Cite web|title=Grey Line's Najafgarh- Dhansa Bus Stand Section Opens: How It Will Benefit Commuters|url=https://www.ndtv.com/business/delhi-metro-grey-line-delhi-metro-grey-line-najafgarh-dhansa-bus-stand-corridor-opens-for-passengers-today-2545488|access-date=2021-09-19|website=NDTV.com|date=18 September 2021 }}

{{Main|List of Delhi Metro stations}}

The Delhi Metro has been undergoing construction in phases. Phase I consisted of 59 stations and {{convert|64.75|km|mi|abbr=on}} of route length,{{cite web |url=https://www.delhimetrorail.com/network |title=Network |website= delhimetrorail.com |publisher=Delhi Metro Rail Corporation |access-date= 11 January 2022}} of which {{convert|13.0|km|mi|abbr=on}} is underground and {{convert|52.0|km|mi|abbr=on}} at grade or elevated.{{Cite news |title=Underground network in Phase 1 is 13 km |work=The Economic Times |url=https://economictimes.indiatimes.com/industry/transportation/railways/delhi-metro-wraps-up-tunneling-works-of-phase-iii/articleshow/55689235.cms?from=mdr |access-date=2022-04-25}} The inauguration of the Dwarka–Barakhamba Road corridor of the Blue Line completed Phase I in October 2006.{{cite news|url=https://indianexpress.com/section/cities/?newsid=206789|archive-url=https://web.archive.org/web/20201231230947/https://indianexpress.com/section/cities/?newsid=206789|url-status=dead|archive-date=31 December 2020|title=Phase 1 complete, Pragati Maidan now on Metro map|date=27 October 2006|newspaper=Express India|access-date=18 April 2010}} Phase II consists of {{convert|123.3|km|mi|abbr=on}} of route length and 86 stations, and is completed; the first section opened in June 2008, and the last section opened in August 2011.{{cite news|url=http://www.thehindu.com/todays-paper/tp-national/tp-newdelhi/Delhi-Metro-confident-of-meeting-deadline/article14836060.ece|title=Delhi Metro confident of meeting deadline|last=Ramachandran|first=Smriti Kak|date=17 September 2007|newspaper=The Hindu|access-date=10 September 2009|archive-url=https://web.archive.org/web/20180303140135/http://www.thehindu.com/todays-paper/tp-national/tp-newdelhi/Delhi-Metro-confident-of-meeting-deadline/article14836060.ece|archive-date=3 March 2018|url-status=live|location=New Delhi}} Phase III consists of 109 stations, three new lines and seven route extensions, totaling {{convert|160.07|km|mi|abbr=on}}, at a cost of {{INRConvert|410.79|b}}. Most of it was completed on 5 April 2019, except for a small section of the Pink Line between the Mayur Vihar Pocket 1 and Trilokpuri Sanjay Lake stations{{cite news |last= Ramnani |first= Vandana |date= 6 August 2021 |title=Delhi's 59-km Pink Line Metro now fully operational; becomes longest operational corridor |url=https://www.moneycontrol.com/news/business/real-estate/delhis-59-km-pink-line-metro-now-fully-operational-becomes-longest-operational-corridor-7287061.html |work= Money Control| access-date= 11 January 2022}} (opened on 6 August 2021) the Grey Line extension from Najafgarh to Dhansa Bus Stand{{cite news |last= Prasad |first=Nikita |date= 17 September 2021|title=Grey Line's Najafgarh-Dhansa Bus Stand Corridor To Open For Services Tomorrow| url=https://www.ndtv.com/business/delhi-metro-grey-line-delhi-metro-grey-line-najafgarh-dhansa-bus-stand-corridor-to-open-for-passengers-tomorrow-2543764 |work= NDTV| access-date= 11 January 2022}} (opened on 18 September 2021) and the Airport Express extension from Dwarka Sector 21 to Yashbhoomi-Dwarka Sector 25 (Completed on 17 September 2023). Phase IV, with six lines totaling {{convert|103.93|km|mi|abbr=on}}, was finalized in July 2015. Of this, {{convert|61.679|km|mi|abbr=on}} across three lines (priority corridors) with 45 stations was approved by the government of India for construction on 7 March 2019. The Golden Line was lengthened in October 2020, making the project {{convert|65.1|km|mi|abbr=on}} long. Magenta Line's one station extension along the RK Ashram Marg opened on 5 January 2025 currently as far as Krishna Park Extension, with the rest of the network (Along with planned routes) is planned to be completed by at least 2029.{{cite web |url=https://backend.delhimetrorail.com/documents/1267/APPROVED-PHASE-IV-CORRIDORS-AS-ON-19.08.2021.pdf |title=Approved Phase IV (3 Priority) Corridors |website= delhimetrorail.com |publisher= Delhi Metro Rail Corporation |access-date= 11 January 2022}}{{cite news |date= 20 June 2021 |title=Completion targets of Metro Phase-4 will depend on Covid-19 scenario: DMRC |url=https://www.hindustantimes.com/cities/delhi-news/completion-targets-of-metro-phase-4-will-depend-on-covid-19-scenario-dmrc-101624192413235.html |work= Hindustan Times |access-date= 11 January 2022| quote = “DMRC is currently engaged in the construction of 65 kilometers of new lines across three priority corridors as part of its Phase 4 expansion. These corridors are expected to be completed by 2025. However, given the fact that the Covid-19 scenario is still evolving, the completion targets shall be reviewed accordingly,” said Anuj Dayal, executive director, corporate communications, DMRC.}}

File:HUDA City Center station (Delhi Metro).jpg]]

File:Delhi Airport Metro standing on New Delhi metro station.jpg at the New Delhi metro station]]

Trains operate at a frequency of one to two minutes to five to ten minutes between 05:00 and 00:00, depending upon peak and off-peak hours. They typically travel up to {{convert|75|km/h|mph|abbr=on}}, and stop for about 20 seconds at each station. Automated station announcements are in Hindi and English. Many stations have ATMs, food outlets, cafés, convenience stores and mobile recharge. Eating, drinking, smoking, and chewing gum are prohibited. The metro has a sophisticated fire alarm system for advance warning in emergencies, and fire retardant material is used in trains and stations.{{cite press release |url=http://pib.nic.in/newsite/erelease.aspx?relid=65407 |title=Measures to Ensure Safe Passage for Metro Train Passengers |publisher=Press Information Bureau, Government of India |date=27 August 2010 |access-date=27 April 2022 |url-status=dead |archive-url=https://web.archive.org/web/20140227041917/http://pib.nic.in/newsite/erelease.aspx?relid=65407 |archive-date=27 February 2014 }} Navigation information is available on Google Maps.{{Cite news |url=http://economictimes.indiatimes.com/news/news-by-industry/et-cetera/Delhi-Metro-routes-now-on-Google-Maps/articleshow/5644514.cms |title=Delhi Metro routes now on Google Maps |newspaper=The Economic Times |date=5 March 2010 |access-date=11 March 2010 |url-status=dead |archive-url=https://web.archive.org/web/20100307171527/http://economictimes.indiatimes.com/news/news-by-industry/et-cetera/Delhi-Metro-routes-now-on-Google-Maps/articleshow/5644514.cms |archive-date=7 March 2010 }} Since October 2010, the first coach of every train is reserved for women; the last coach is also reserved when the train changes tracks at the terminal stations on the Red, Green and Violet Lines.{{Cite news |url=http://www.hindustantimes.com/India-news/NewDelhi/Women-get-exclusive-coach-in-Delhi-Metro/Article1-607431.aspx |title=Women get exclusive coach in Delhi Metro |newspaper=Hindustan Times |date=2 October 2010 |access-date=2 October 2010 |url-status=dead |archive-url=https://web.archive.org/web/20141216161805/http://www.hindustantimes.com/india-news/newdelhi/women-get-exclusive-coach-in-delhi-metro/article1-607431.aspx |archive-date=16 December 2014 }} The mobile Delhi Metro Rail app has been introduced for iPhone and Android users with information such as the location of the nearest metro station,{{Cite web|url=https://www.livemint.com/Companies/CLRAfaBKdczSL03AkUvBjM/Delhi-Metro-launches-new-app-with-additional-features.html|title=Delhi Metro launches new app with additional features|date=24 July 2018|website=livemint.com}} fares, parking availability, nearby tourist attractions, security and emergency helpline numbers.{{cite news|url=http://www.thehindu.com/todays-paper/tp-national/tp-newdelhi/dmrc-launches-smart-phone-app/article5050958.ece|title=DMRC launches smartphone app|date=23 August 2013|newspaper=The Hindu|access-date=16 January 2018|archive-url=https://web.archive.org/web/20160201164121/http://www.thehindu.com/todays-paper/tp-national/tp-newdelhi/dmrc-launches-smart-phone-app/article5050958.ece|archive-date=1 February 2016|url-status=live|location=New Delhi}}

Security has been provided by the CISF Unit DMRC since 2007.{{Cite news |url=https://timesofindia.indiatimes.com/india/CISF-to-take-over-Delhi-Metro-security/articleshow/1730990.cms |archive-url=https://web.archive.org/web/20121103182406/http://articles.timesofindia.indiatimes.com/2007-03-07/india/27875703_1_cisf-delhi-metro-baggage |url-status=live |archive-date=3 November 2012 |title=CISF to take over Delhi Metro security |newspaper=The Times of India |date=7 March 2007 |access-date=15 April 2010}} Closed-circuit cameras monitor trains and stations, and their feeds are monitored by the CISF and Delhi Metro authorities.{{cite news |url=http://www.dnaindia.com/india/report_delhi-metro-parking-areas-to-be-bought-under-cctv-cameras_1361509 |title=Delhi metro parking areas to be bought under CCTV cameras |newspaper=Daily News and Analysis |date=21 March 2010 |access-date=15 April 2010 |url-status=dead |archive-url=https://web.archive.org/web/20100826091055/http://www.dnaindia.com/india/report_delhi-metro-parking-areas-to-be-bought-under-cctv-cameras_1361509 |archive-date=26 August 2010 }} Over 7,000 CISF personnel have been deployed for security in addition to metal detectors, X-ray baggage-inspection systems, and detection dogs. Eighteen Delhi Metro Rail Police stations have been established, and about 5,200 CCTV cameras have been installed. Each underground station has 45 to 50 cameras, and each elevated station has 16 to 20 cameras. The cameras are monitored by the CISF and the Delhi Metro Rail Corporation.{{Cite news |author=Megha Suri Singh |url=https://timesofindia.indiatimes.com/city/delhi/Moscow-blasts-put-Metro-security-in-alert-mode/articleshow/5740559.cms |archive-url=https://web.archive.org/web/20121103182411/http://articles.timesofindia.indiatimes.com/2010-03-30/delhi/28140741_1_metro-stations-delhi-metro-metro-security |url-status=live |archive-date=3 November 2012 |title=Moscow blasts put Metro security in alert mode |newspaper=The Times of India |date=30 March 2010 |access-date=15 April 2010}} Intercoms are provided in each train car for emergency communication between passengers and the train operator.{{cite web |url=https://backend.delhimetrorail.com/documents/1028/security_english.pdf |title=Commuters Guide to Security on Delhi Metro |publisher=DMRC |access-date=27 April 2022}} Periodic security drills are carried out at stations and on trains.{{Cite news |url=https://timesofindia.indiatimes.com/city/delhi/Mock-drills-at-4-Metro-stations/articleshow/5724920.cms |archive-url=https://web.archive.org/web/20121103182417/http://articles.timesofindia.indiatimes.com/2010-03-26/delhi/28141931_1_drills-metro-stations-disaster-preparedness |url-status=live |archive-date=3 November 2012 |title=Mock drills at 4 Metro stations |newspaper=The Times of India |date=26 March 2010 |access-date=15 April 2010}} The DMRC is considering raising station walls and railings for passenger safety.{{cite news |url=https://timesofindia.indiatimes.com/city/delhi/Metro-to-raise-height-of-walls-at-stations/articleshow/13058113.cms |archive-url=https://web.archive.org/web/20130715185337/http://articles.timesofindia.indiatimes.com/2012-05-09/delhi/31641256_1_metro-chief-mangu-singh-metro-stations-dmrc-official |url-status=live |archive-date=15 July 2013 |title=Metro to raise height of walls at stations |newspaper=The Times of India |date=9 May 2012 |access-date=9 May 2012}}

File:Delhi Metro token (44477075641).jpg

The metro's fares were last revised on 10 October 2017, based on the recommendation of the 4th Fare Fixation Committee in May 2016.{{cite web |url=https://www.financialexpress.com/india-news/delhi-metro-fare-hike-chart-dmrc-raises-ticket-prices-take-a-look-at-full-list-of-revised-fare/888315/ |title=Delhi Metro fare hike chart: DMRC raises ticket prices |date=10 October 2017|access-date=25 April 2022 |website=financialexpress.com}}{{Cite web |title=Delhi Metro fares revised: Here's all you need to know about the fare hike and fare slabs {{!}} India.com |url=https://www.india.com/business/delhi-metro-fares-revised-heres-all-you-need-to-know-about-the-fare-hike-and-fare-slabs-2113696/ |date=10 May 2017 |access-date=2022-04-25 |website=www.india.com |language=en}} Metro commuters have five choices for ticket purchases:{{cite web |url=https://www.delhimetrorail.com/ticket |title=Ticket |website=delhimetrorail.com |publisher=Delhi Metro Rail Corporation |access-date= 25 April 2022}}

• RFID token: RFID tokens are valid only for a single journey on the day of purchase. Their value depends on the distance travelled, with fares for a single journey ranging from {{INRConvert|10}} to {{INRConvert|60}}. Fares are calculated based on the distance between the origin and destination stations. As of 2024 they are no longer in use.
• Smart card: Smart cards are available for longer terms, and are the most convenient for frequent commuters. Valid for ten years from the date of purchase or the date of the last recharge, they are available in denominations of {{INRConvert|200}} to {{INRConvert|3000||1}}. A 10-percent discount is given, with an additional 10-percent discount for off-peak travel.{{cite web |url=https://www.delhimetrorail.com/smart-card |title=Smart Cards |publisher=DMRC |access-date=25 April 2022 }} A new card has a {{INRConvert|50}} deposit, refundable on its return before expiry if physically undamaged.{{cite web |url=https://www.indiatoday.in/information/story/metro-information-regarding-token-cards-and-recharge-1605143-2019-10-01 |title=Information on Delhi metro's tokens and smart cards |publisher=India Today|date=1 October 2019 |access-date=25 April 2022 }} For women commuters, the Delhi government unsuccessfully proposed a fare-exemption scheme.{{cite news |first=Devanjana |last=Nag |date=11 June 2019 |url=https://www.financialexpress.com/infrastructure/delhi-metro-free-rides-for-women-travelling-from-delhi-to-ncr-and-vice-versa-heres-the-proposed-rule/1603773/ |title=Delhi Metro free rides for women: Travelling from Delhi to NCR and vice-versa? Here's the proposed rule |newspaper=The Financial Express}}{{cite news |last=Bedi |first=Aneesha |date=6 November 2019 |title=Delhi Metro chief says free rides for women not possible until tech updated to check misuse |url=https://theprint.in/india/governance/delhi-metro-chief-says-free-rides-for-women-not-possible-until-tech-updated-to-check-misuse/316202/ |work= ThePrint |access-date= 25 April 2022}} A common ticketing facility, allowing commuters to use smart cards on Delhi Transport Corporation (DTC) buses and the metro, was introduced on 28 August 2018.{{cite news |last=Dixit|first=Manas|url=https://edtimes.in/you-can-now-swipe-your-metro-card-to-pay-for-bus-rides-in-delhi/ |title=Common Mobility Card for DTC bus, metro |newspaper=ED Times |date=24 August 2018 |access-date=27 April 2022 }}
• Tourist card: Tourist cards can be used for unlimited travel on the Delhi Metro for short periods of time. There are two kinds of tourist cards, valid for one and three days. The cost of a one-day card is {{INRConvert|0.2|k|1}} and a three-day card is {{INRConvert|0.5|k|1}}, including a refundable deposit of {{INRConvert|50}} paid at purchase.{{cite web |url=https://www.delhimetrorail.com/tourist-card |title=Tourist Card |access-date=25 April 2022 |website=delhimetrorail.com}}
• National Common Mobility Card: Part of the Indian government's One Nation, One Card policy, the National Common Mobility Card is an inter-operable transport card enabling a user to pay for travel, tolls, shopping and cash.{{cite web |url=https://npci.org.in/PDF/npci/knowledge-center/partner-whitepapers/NCMC-Tap-and-Transit-Pan-India-with-RuPay.pdf |title= NCMC - Tap & Transit, Pan India with RuPay |date= 1 September 2023 |website= npci.org.in |publisher= National Payments Corporation of India (NPCI) |access-date=14 November 2023}}{{cite web |url=https://www.delhimetrorail.com/pages/en/pressrelease_details/indigenously-developed-national-common-mobility-ca |title= Indigenously Developed National Common Mobility Card, QR Ticket, Account Based Ticketing To Be Made Available in the Entire Metro Network; Contract for Implementing the Same Awarded |date= 25 February 2022 |website= delhimetrorail.com |publisher= DMRC |access-date=14 November 2023}}{{cite web |url=https://www.drishtiias.com/daily-news-analysis/national-common-mobility-card |title= National Common Mobility Card |date= 5 March 2019|website= drishtiias.com |publisher= Drishti IAS |access-date=14 November 2023}} Enabled through RuPay, the NCMC was commissioned on the Airport Express Line on 28 December 2020.{{Cite web|date=2020-12-28|title=Delhi Metro: National Common Mobility Card facility introduced on Airport Express Line |url=https://www.financialexpress.com/infrastructure/delhi-metro-national-common-mobility-card-facility-introduced-on-airport-express-line-see-features/2159052/|access-date=2021-10-09 |website=The Financial Express |language=en-US}} In June 2023, DMRC completed the upgrade of its automatic fare collection (AFC) systems to be compliant with NCMC services.{{Cite web |url=https://travel.economictimes.indiatimes.com/news/destination/states/delhi-metro-network-to-be-fully-ncmc-compliant-by-jun-2023-dmrc/89858333 |title=Delhi Metro network to be fully NCMC-compliant by Jun 2023: DMRC | website= ettravelworld.com |access-date=2022-03-26 |language=en}}{{cite news |last=Web Team |first=BS |date=29 May 2023 |title=You can now use RuPay debit card for traveling in Delhi metro |url=https://www.business-standard.com/india-news/you-can-now-use-rupay-debit-card-for-traveling-in-delhi-metro-details-here-123052900323_1.html |work=Business Standard |location=New Delhi |access-date=14 November 2023}}File:QR based ticket - DMRC.jpg
• QR code based ticketing: A Delhi Metro QR ticket is a mobile-based ticket allowing travel like a token or recharge card.{{cite web |url=https://www.delhimetrorail.com/app-based-qr-ticketing |title=App based QR- Ticketing System |website=delhimetrorail.com |publisher= Delhi Metro Rail Corporation |access-date=25 April 2022}}{{cite news |last=Singh |first=Ramneek |date= 9 March 2022 |title=Delhi Metro QR ticket: How to book Delhi Metro ticket using QR code via Android mobile phone and iPhone |url=https://www.91mobiles.com/hub/delhi-metro-qr-ticket/ |work=91 Mobiles |access-date= 25 April 2022}} A ticket can be bought online with the RIDLR app. For entry and exit, the QR ticket is scanned at the AFC gates. Similar to mobile-based tickets, paper QR tickets can be bought at a station.{{cite web |url=https://www.delhimetrorail.com/paper-qr-ticketing |title=Paper QR Ticket |website=delhimetrorail.com |publisher= Delhi Metro Rail Corporation |access-date=25 April 2022}}{{cite news |last=Prashar |first=Sakshi |date=16 February 2021 |title=Delhi Metro to introduce QR code-based ticketing system in a bid to go contactless |url=https://economictimes.indiatimes.com/industry/transportation/railways/delhi-metro-to-introduce-qr-ticketing-mechanism-to-go-cashless-contactless-in-covid-times/articleshow/80963858.cms |work= The Economic Times |access-date= 25 April 2022}}{{cite news |last=Chitlangia |first=Risha |date=15 February 2021 |title=Delhi Metro to go contactless as DMRC pushes for QR code, RuPay-based ticketing |url=https://www.hindustantimes.com/cities/delhi-news/delhi-metro-to-go-cashless-touchfree-101613340496585.html |work= The Hindustan Times |access-date= 25 April 2022}}

File:Gurgaon IFFCO Chowk.jpg in Gurgaon. After complaints from nearby residents, the Delhi Metro installed barriers in 2011 to reduce noise pollution from metro trains.{{cite news|url=https://www.hindustantimes.com/gurugram/noise-barriers-not-enough-residents-want-speed-of-metro-trains-to-be-slowed/story-a6QkAmSQedKYzQgXiFpCEL.html|title=Noise barriers not enough, residents want speed of Metro trains to be slowed|year=2011|newspaper=Hindustan Times|access-date=14 July 2018}}]]

File:Jasola Apollo Metro Station.jpg]]

As the metro has expanded, high ridership on new trains has led to increasing overcrowding and delays.{{cite news|url=http://archive.indianexpress.com/news/widening-reach-metro-looks-at-ways-to-ease-rush/542010/0|title=Widening reach, Metro looks at ways to ease rush|last=Dutta|first=Sweta|date=16 November 2009|newspaper=The Indian Express|access-date=15 January 2018|archive-url=https://web.archive.org/web/20170628234904/http://archive.indianexpress.com/news/widening-reach-metro-looks-at-ways-to-ease-rush/542010/0|archive-date=28 June 2017|url-status=live|location=New Delhi}}{{cite news |author=Atul Mathur |url=http://www.hindustantimes.com/News-Feed/newdelhi/Crowded-stations-slow-trains/Article1-477845.aspx |title=Crowded stations, slow trains |newspaper=Hindustan Times |date=19 November 2009 |access-date=21 November 2009 |url-status=dead |archive-url=https://web.archive.org/web/20091122205221/http://www.hindustantimes.com/News-Feed/newdelhi/Crowded-stations-slow-trains/Article1-477845.aspx |archive-date=22 November 2009 }} To alleviate the problem, eight-coach trains have been introduced on the Yellow and Blue Lines and more-frequent trains have been proposed. Infrequent, overcrowded and erratic feeder bus services connecting stations to nearby localities have also been a concern.{{cite news |author=Atul Mathur |url=http://www.hindustantimes.com/News-Feed/newdelhi/Feeder-service-or-the-lack-of-it/Article1-484059.aspx |title=Feeder service or the lack of it |newspaper=Hindustan Times |date=8 December 2009 |access-date=8 December 2009 |url-status=dead |archive-url=https://web.archive.org/web/20110711170718/http://www.hindustantimes.com/News-Feed/newdelhi/Feeder-service-or-the-lack-of-it/Article1-484059.aspx |archive-date=11 July 2011 }}{{Cite news|url=http://indiatoday.intoday.in/story/Parking+feeder+bus+woes+on+Metro%25E2%25AC%2522s+Noida+line/1/70508.html|title=Parking, feeder bus woes on Metros Noida line|access-date=12 February 2017}} Although the quality and cleanliness of the Delhi Metro have been praised, rising fares have been criticized; fares are higher than those of the bus services the metro replaced. According to a recent study, Delhi Metro fares are the second-most unaffordable among metros charging less than US$0.5 per ride.{{Cite news|url=https://timesofindia.indiatimes.com/city/delhi/delhi-metro-is-second-most-unaffordable-in-world-cse/articleshow/65678814.cms|title=Delhi Metro is second-most unaffordable in world: CSE |work=The Times of India|access-date=6 September 2018}} Another study finds that Delhi Metro may also have a low ridership problem compared to its size and may not be generating the amount of traffic a metro system generates.{{cite journal |last1=Roy | first1=Shubho |last2=Shah | first2=Ajay |date= December 2018 |title=Concerns with Delhi Metro| journal=The Leap Blog| url=https://blog.theleapjournal.org/2018/12/concerns-with-delhi-metro.html |access-date=21 January 2019}}

File:DMRC Electric Feeder Bus - Front view - Wide.jpg]]

DMRC began its feeder bus service in 2007 with a fleet of 117 minibuses on 16 routes.{{cite news |date=4 November 2007 |title=DMRC to introduce new feeder buses from Monday |url=https://economictimes.indiatimes.com/industry/transportation/railways/dmrc-to-introduce-new-feeder-buses-from-monday/articleshow/2517256.cms |work=PTI |location=New Delhi |access-date=7 January 2024}}{{cite web |url=https://www.delhimetrorail.com/otherdocuments/Feeder.pdf |title=Public Demands for Metro Feeder Services |website=delhimetrorail.com |publisher=DMRC |access-date=7 January 2024}} In January 2024, it had a fleet of 47 electric feeder buses on five routes to nine metro stations: Kashmere Gate, Gokulpuri, Shastri Park, Laxmi Nagar, East Vinod Nagar - Mayur Vihar-II, Anand Vihar, Dilshad Garden, Vishwavidyalaya, and GTB Nagar. The routes are:{{cite web |url=https://www.delhimetrorail.com/metro-feeder-buses-routes |title=Metro Feeder Buses - Routes |website=delhimetrorail.com |publisher=DMRC |access-date=7 January 2024}}{{cite web |url=https://www.delhimetrorail.com/search/feeder%20bus |title=Search Results: Feeder Bus |website=delhimetrorail.com |publisher=DMRC |access-date=7 January 2024}}{{Cite web |title=Last Mile Connectivity |url=https://www.delhimetrorail.com/last-mile-connectivity |publisher=DMRC |access-date=17 July 2020 |website=delhimetrorail.com}}

• MC-127: Kashmere Gate to Harsh Vihar
• MC-137: Shastri Park to Mayur Vihar Phase-III
• MC-137 (Mini): Udyog Bhawan to Vanijya Bhawan
• MC-341: Mayur Vihar Phase-III to Harsh Vihar
• ML-06: Vishwavidyalaya to Shankarpura

Note that DMRC reports different metrics versus the daily ridership below. DMRC report "daily passenger journeys" - for example, in 2022–23, DMRC reported that average daily passenger journeys were approx 4.63 million per day as compared to 5.16 million per day in 2019-20 (pre-Covid).{{Cite web |date=11 March 2024 |title=Delhi Metro Annual Report 2022-23|url=https://backend.delhimetrorail.com/documents/5227/English_AR-2022-23.pdf |access-date=11 March 2024 |language=en}}

Metro service was suspended on 25 March 2020 due to the COVID-19 pandemic.{{cite web |date=24 March 2020 |title=PM calls for a complete lockdown of the entire nation for 21 days |url=https://pib.gov.in/PressReleseDetail.aspx?PRID=1608009 |access-date=11 January 2022 |website=Press Information Bureau}} Operations resumed on 12 September 2020,{{Cite web |date=12 September 2020 |title=Delhi Metro resumes full services from today. 5 facts you should know |url=https://www.livemint.com/news/india/delhi-metro-to-resume-full-services-from-today-7-facts-11599870743258.html |access-date=16 September 2022 |website=mint |language=en}} and the average daily ridership fell to 8.78 lakh (0.88 million) in FY 2020–21.{{cite web| title=Economic Survey of Delhi 2021–22 | url=http://delhiplanning.nic.in/sites/default/files/E12_Transport.pdf#page=5|pages=217–219, 229 |access-date=30 April 2022|archive-url=https://web.archive.org/web/20220531151545/http://delhiplanning.nic.in/sites/default/files/E12_Transport.pdf |archive-date=31 May 2022}}

The maximum daily ridership (passenger journeys) of 7.86 million was reported on 18 November 2024.{{Cite web |date=19 November 2024 |title=Delhi Metro recorded its highest-ever daily ridership on November 18|work=The Times of India |url=https://timesofindia.indiatimes.com/india/delhi-metro-records-highest-ever-daily-ridership-amid-severe-pollution-crisis/articleshow/115452948.cms |access-date=19 November 2024 |language=en}}

{{Bar chart

| title = Average daily ridership{{cite web |title=Average daily ridership 2004- 14 |url=https://backend.delhimetrorail.com/documents/21/EnglishAR201314Low.pdf#page=32 |archive-url=https://web.archive.org/web/20221112032123/https://backend.delhimetrorail.com/documents/21/EnglishAR201314Low.pdf |archive-date=12 November 2022 |access-date=25 April 2022 |page=30}}{{Cite web |title=Economic Survey of Delhi 2023–24, Chapter 12: Transport |url=https://delhiplanning.delhi.gov.in/sites/default/files/Planning/chapter_12.pdf |access-date=28 March 2024 |page=240|archive-url=https://web.archive.org/web/20240930092244/https://delhiplanning.delhi.gov.in/sites/default/files/Planning/chapter_12.pdf|archive-date=30 September 2024}}

| label_type = Year

| data_type = Ridership

| bar_width = 50

| width_units = em

| data_max = 5000000

| label1 = 2004–05

| data1 = 1,24,000

| label2 = 2005–06

| data2 = 2,68,000

| label3 = 2006–07

| data3 = 4,84,000

| label4 = 2007–08

| data4 = 6,25,000

| label5 = 2008–09

| data5 = 7,22,000

| label6 = 2009–10

| data6 = 9,19,000

| label7 = 2010–11

| data7 = 12,59,000

| label8 = 2011–12

| data8 = 16,60,000

| label9 = 2012–13

| data9 = 19,26,000

| label10 = 2013–14

| data10 = 22,04,908

| label11 = 2014–15

| data11 = 24,02,850

| label12 = 2015–16

| data12 = 26,15,050

| label13 = 2016–17

| data13 = 28,00,792

| label14 = 2017–18

| data14 = 25,87,271

| label15 = 2018–19

| data15 = 25,93,090

| label16 = 2019–20*^

| data16 = 27,80,000

| label17 = 2020–21*^

| data17 = 8,78,000

| label18 = 2021–22*^

| data18 = 25,16,068

| label19 = 2022–23*^

| data19 = 46,26,592

}}

* Includes Rapid Metro Gurgaon

^ From 2019 onwards the DMRC changed the ridership calculation to count every trip taken by a passenger on a line. This means that a passenger that takes 2 connections will count 3 times towards ridership. This is different from the more standard practice of counting entire journeys applied in other metro systems.{{Cite web |date=2024-01-18 |title=Delhi Metro logs 2 billion passenger trips for 2023 — highest ever |url=https://www.hindustantimes.com/cities/delhi-news/delhi-metro-logs-2-billion-passenger-trips-for-2023-highest-ever-101705517441601.html |access-date=2024-05-29 |website=Hindustan Times |language=en}} Therefore, Delhi metro reports approximately 55% higher ridership when compared to similar transit systems worldwide.{{Cite web |title=PERFORMANCE OF INDIAN METRO SYSTEMS: LESSONS FOR UPCOMING URBAN RAIL PROJECTS |url=https://cms.uitp.org/wp/wp-content/uploads/2022/01/Knowledge-Brief-November-2021.pdf |website=cms.uitp.org}}

{{Graph:Chart

| width=575

| height=300

| xAxisTitle=Year

| yAxisTitle=₹ crore

| legend=Legend

| type=line

| x=2007,2008,2009,2010,2011,2012,2013,2014,2015,2016,2017,2018,2019,2020,2021,2022,2023

| y1=543,504,724,738,1608,2248,2687,3198,3571,4355,5388,6211,6462,7015,3289,4677,6645

| y2=399,300,473,356,750,933,1028,1062,1240,1281,1433,1836,1963,2208,-696,-431,811

| y3=24,26,90,-90,-12,-68,-8,-60,-275,-471,-348,-145,-764,-626,-3553,-4716,2153

| y1Title=Revenue

| y2Title=EBITDA

| y3Title=Profit before tax

| yGrid=

| colors=#0000aa,#ff8000,#00aa00

}}

Source:{{Cite web|title=Annual Report 2006–07|url=http://old.delhimetrorail.com/OtherDocuments/AnnualReports/2006-07.pdf|website=Delhi Metro Rail Corporation|access-date=18 May 2022|archive-date=26 April 2022|archive-url=https://web.archive.org/web/20220426210732/http://old.delhimetrorail.com/OtherDocuments/AnnualReports/2006-07.pdf|url-status=live}}{{Cite web|title=Annual Report 2007–08|url=http://old.delhimetrorail.com/OtherDocuments/AnnualReports/2007-08.pdf|website=Delhi Metro Rail Corporation|access-date=18 May 2022|archive-date=26 April 2022|archive-url=https://web.archive.org/web/20220426210650/http://old.delhimetrorail.com/OtherDocuments/AnnualReports/2007-08.pdf|url-status=live}}{{Cite web|title=Annual Report 2008–09|url=http://old.delhimetrorail.com/OtherDocuments/AnnualReports/2008-09.pdf|website=Delhi Metro Rail Corporation|access-date=18 May 2022|archive-date=26 April 2022|archive-url=https://web.archive.org/web/20220426210651/http://old.delhimetrorail.com/OtherDocuments/AnnualReports/2008-09.pdf|url-status=live}}{{Cite web|title=Annual Report 2009–10|url=http://old.delhimetrorail.com/OtherDocuments/AnnualReports/2009-10.pdf|website=Delhi Metro Rail Corporation|access-date=18 May 2022|archive-date=26 April 2022|archive-url=https://web.archive.org/web/20220426210739/http://old.delhimetrorail.com/OtherDocuments/AnnualReports/2009-10.pdf|url-status=live}}{{Cite web|title=Annual Report 2010–11|url=http://old.delhimetrorail.com/OtherDocuments/AnnualReports/2010-11.pdf|website=Delhi Metro Rail Corporation|access-date=18 May 2022|archive-date=26 April 2022|archive-url=https://web.archive.org/web/20220426210839/http://old.delhimetrorail.com/OtherDocuments/AnnualReports/2010-11.pdf|url-status=live}}{{Cite web|title=Annual Report 2011–12|url=https://backend.delhimetrorail.com/media/documents/Annual-Repot11-12English.pdf|website=Delhi Metro Rail Corporation|access-date=25 April 2022}}{{Cite web|title=Annual Report 2012-13|url=https://backend.delhimetrorail.com/documents/15/DMRC_Annual-Report-2012-2013.pdf|website=Delhi Metro Rail Corporation|access-date=25 April 2022}}{{Cite web|title=Annual Report 2013–14|url=https://backend.delhimetrorail.com/documents/21/EnglishAR201314Low.pdf|website=Delhi Metro Rail Corporation|access-date=25 April 2022}}{{Cite web|title=Annual Report 2014–15|url=https://backend.delhimetrorail.com/documents/14/DELHI1-92english.pdf|website=Delhi Metro Rail Corporation|access-date=25 April 2022}}
{{cite web|title=Annual Report 2015-16|url=https://backend.delhimetrorail.com/documents/16/DMRCAEnglhYear20156.pdf|website=Delhi Metro Rail Corporation|access-date=25 April 2022}}{{Cite web|url=http://www.business-standard.com/article/economy-policy/delhi-metro-rail-finances-in-the-red-116053101257_1.html|title=Delhi Metro Rail finances in the red|last=Singh|first=Sudheer Pal|date=31 May 2016|website=Business Standard|location=New Delhi|archive-url=https://web.archive.org/web/20170930034706/http://www.business-standard.com/article/economy-policy/delhi-metro-rail-finances-in-the-red-116053101257_1.html|archive-date=30 September 2017|url-status=live|access-date=22 January 2018}}{{Cite web|title=Annual Accounts And Directors Report 2016–17|url=https://backend.delhimetrorail.com/documents/17/DMRC-AR-2017-WEB_23118.pdf#page=35|page=32|website=Delhi Metro Rail Corporation|access-date=25 April 2022}}{{Cite web |title=Annual Accounts And Directors Report 2017–18 |url=https://backend.delhimetrorail.com/documents/19/DMRC-English-AR-Year-2017-18.pdf#page=34|page=32 |access-date=25 April 2022 |website=Delhi Metro Rail Corporation}}{{Cite web |title=Annual Report 2018-19 |url=https://backend.delhimetrorail.com/documents/20/DMRC-REPORT-2018-2019-English-Web.pdf#page=32|page=30 |website=Delhi Metro Rail Corporation}}{{Cite web |title=Annual Report 2019-20 |url=https://backend.delhimetrorail.com/documents/18/DMRC-English-Annual-Report-2019-20.pdf#page=32|page=30 |website=Delhi Metro Rail Corporation}}{{Cite web |title=Annual Report 2020-21 |url=https://backend.delhimetrorail.com/documents/1749/DMRC-AR-2020-21-14022022.PDF#page=32|page=30 |website=Delhi Metro Rail Corporation}}{{Cite web |title=Annual Report 2021-22 |url=https://backend.delhimetrorail.com/documents/3502/DMRC_Annaul_Report_2021-22_Lowres.pdf#page=37|page=35}}{{Cite web |title=Annual Report 2022-23 |url=https://backend.delhimetrorail.com/documents/5227/English_AR-2022-23.pdf#page=35|page=33}}

The Delhi Metro has been operating with a loss in EBT (earnings before taxes) since 2010, although the loss has shrunk since 2015–16. Its EBITDA (earnings before interest, taxes, depreciation, and amortization) declined from 73 percent in FY 2007 to 27 percent in FY 2016–17 before improving to 30 percent in 2017–18. The metro began a naming policy for stations in 2014, awarded by an open e-tendering process, to generate non-fare revenue.{{Cite news |title=Delhi: Station naming rights pushing up metro income {{!}} Delhi News |url=https://timesofindia.indiatimes.com/city/delhi/station-naming-rights-pushing-up-metro-income/articleshow/68661807.cms |access-date=2022-02-15 |website=The Times of India |date=April 2019 |language=en}}{{Cite web|date=2018-05-03|title=43 and counting… station branding is doing wonders for Delhi Metro revenue|url=https://indianexpress.com/article/cities/delhi/43-and-counting-station-branding-is-doing-wonders-for-delhi-metro-revenue-5160850/|access-date=2022-02-15|website=The Indian Express|language=en}}{{Cite news|title=IIT Delhi: How a premier IIT fought and won a brand war at Delhi's metro station|work=The Economic Times|url=https://economictimes.indiatimes.com/news/et-explains/how-a-premier-iit-fought-and-won-a-brand-war-at-delhis-metro-station/articleshow/66920311.cms|access-date=2022-02-15}}

DMRC is owned by the government of the National Capital Territory of Delhi and the government of India. Total debt was {{INRConvert|291.5|b|1}} in March 2016, and equity capital was {{INRConvert|239.9|b|1}}. The cost of the debt is zero percent for Union Government and Delhi Government loans, and from 0.01 and 2.3 percent for Japan International Cooperation Agency (JICA) loans. On 31 March 2016, {{INRConvert|193.1|b|1}} was paid-up capital; the rest is reserves and surplus.

Delhi Metro has 15 depots.

Some depots, such as Shastri Park and Yamuna Bank, are near their respective at-grade station complexes; others, such as Sarita Vihar and Mundka, are joined indirectly to the main line. The Najafgarh depot is unique in housing trains from the Blue and Grey Lines; the Sarita Vihar depot will house Violet and Golden Line trains in the future. The Phase III Kalindi Kunj and Vinod Nagar depots were built differently due to land-acquisition issues; the former has an extra elevated stabling yard adjacent to the Jasola Vihar - Shaheen Bagh station, and the latter has two sub-depots (one with two floors). An elevated stabling yard was also built adjacent to the Noida Electronic City station, but it is not considered a depot. As part of Phase IV, the Mukundpur depot will be expanded to accommodate the Pink and Magenta Lines{{cite web |url=https://themetrorailguy.com/2022/04/24/himcon-begins-delhi-metro-mukundpur-depots-expansion-work/ |title=Himcon Begins Delhi Metro Mukundpur Depot's Expansion Work |date=24 April 2022 |website=themetrorailguy.com |publisher=The Metro Rail Guy |access-date=15 December 2023}}{{cite news |date=17 April 2022 |title=Delhi Metro to expand capacity at Mukundpur depot to cater requirements of phase 4 corridors |url=https://www.livemint.com/news/delhi-metro-to-expand-capacity-at-mukundpur-depot-to-cater-requirements-of-phase-4-corridors-11650177572411.html |work=Livemint |location=New Delhi |access-date=15 December 2023}} without land-acquisition issues.{{Cite web |date=2022-04-17 |title=Delhi Metro to augment capacity of Mukundpur depot: DMRC |url=https://theprint.in/india/delhi-metro-to-augment-capacity-of-mukundpur-depot-dmrc/920099/ |access-date=2024-09-08 |website=ThePrint |language=en-US}}

File:New Delhi Metro.jpg–BEML train[https://web.archive.org/web/20180412082051/https://in.reuters.com/article/businessNews/idINIndia-30371920071107 Reuters – Hyundai Rotem gets m order to supply trains]. In.reuters.com. Retrieved 24 October 2011.]]

File:DMRC Bombardier.jpg train]]

The metro has two rail gauges. Phase I lines have {{Track gauge|5ft6in|lk=on}} broad gauge rolling stock, and three Phase II lines have {{Railgauge|Standard}} rolling stock.{{cite news|url=http://www.thehindubusinessline.com/todays-paper/tp-logistics/article1044622.ece|title=Delhi Metro gets standard gauge train|date=18 March 2009|newspaper=Business Line|access-date=22 January 2018|archive-url=https://web.archive.org/web/20110811092034/http://www.thehindubusinessline.com/todays-paper/tp-logistics/article1044622.ece|archive-date=11 August 2011|url-status=dead|publisher=The Hindu|location=New Delhi}} Trains are maintained at seven depots at Khyber Pass and Sultanpur for the Yellow Line, Mundka for the Green Line, Najafgarh and Yamuna Bank for the Blue Line, Shastri Park for the Red Line, and Sarita Vihar for the Violet Line.{{cite news|url=http://www.thehindu.com/news/cities/Delhi/Metro-gets-first-standard-gauge-depot/article16816399.ece|title=Metro gets first standard gauge depot|date=23 February 2010|newspaper=The Hindu|access-date=22 January 2018}}{{cite web |url=http://www.railway-technology.com/projects/delhi-metro/ |title=Delhi Metro, India |website=Railway-Technology.com |access-date=12 May 2014 |url-status=live |archive-url=https://web.archive.org/web/20180228131955/http://www.railway-technology.com/projects/delhi-metro |archive-date=28 February 2018 }} Maglev trains were considered for some Phase III lines, but DMRC decided to continue with conventional rail in August 2012.{{cite news|url=http://archive.indianexpress.com/news/delhi-metro-says-no-to-maglev-technology/985544|title=Delhi Metro says no to Maglev technology|date=8 August 2012|newspaper=The Indian Express|access-date=22 January 2018|archive-url=https://web.archive.org/web/20160201164122/http://archive.indianexpress.com/news/delhi-metro-says-no-to-maglev-technology/985544|archive-date=1 February 2016|url-status=live|location=New Delhi}}

By 31 March 2015, the company had a total of 1,306 coaches (220 trains). In addition to line extensions, two new lines (7 and 8) were proposed in Phase III. Unattended train operation (UTO) will be in 486 coaches (81 six-car trains). An additional 258 broad-gauge (BG) coaches for Lines 1 to 4 and 138 standard-gauge (SG) coaches for Lines 5 and 6 were proposed. At the end of Phase III, there would be 2,188 coaches (333 trains). Except for a few four-car trains on Line 5, 93 percent of the trains would have a six- or eight-car configuration at the end of Phase III.

Rolling stock is provided by two major suppliers. Phase I rolling stock was supplied by a consortium of companies (Hyundai Rotem, Mitsubishi Corporation, and MELCO). The coaches look similar to the MTR Rotem EMU, but have only four doors; sliding doors, instead of plug doors, are used. The coaches were initially built in South Korea by Rotem, then in Bangalore by BEML through a technology transfer arrangement.{{cite news |author=P. Manoj |url=http://www.hindu.com/2005/08/25/stories/2005082504340500.htm |title=BEML to rake in big money from proposed metro projects |date=25 August 2005 |access-date=26 September 2009 |url-status=dead |archive-url=https://web.archive.org/web/20080328010423/http://www.hindu.com/2005/08/25/stories/2005082504340500.htm |newspaper=The Hindu |archive-date=28 March 2008 }} The trains consist of four lightweight {{convert|3.2|m|ftin|adj=mid|-wide}} stainless-steel coaches with vestibules (permitting movement throughout them) and can carry up to 1,500 passengers,{{Cite news |url=https://timesofindia.indiatimes.com/city/delhi/Second-Metro-rail-arrives-in-Delhi/articleshow/25298669.cms |archive-url=https://web.archive.org/web/20110709210548/http://articles.timesofindia.indiatimes.com/2002-10-15/delhi/27293350_1_train-sets-first-metro-shahdara-tis-hazari |url-status=live |archive-date=9 July 2011 |title=Second Metro rail arrives in Delhi |newspaper=The Times of India |date=15 October 2002 |access-date=26 September 2009}} with 50 seated and 330 standing passengers per coach.{{cite web |url=http://www.delhimetrorail.com/OtherDocuments/metro_museum/images/7.jpg |title=Rolling Stock: Ensuring Passenger Comfort, Safety and Reliability |publisher=DMRC |format=jpg |access-date=27 September 2010 |url-status=dead |archive-url=https://web.archive.org/web/20101021052831/http://delhimetrorail.com/OtherDocuments/metro_museum/images/7.jpg |archive-date=21 October 2010 }} The coaches are air-conditioned, equipped with automatic doors, microprocessor-controlled brakes and secondary air suspension,{{cite news |url=http://www.hinduonnet.com/2002/07/27/stories/2002072703730400.htm |title=Metro Rail gets first train |newspaper=The Hindu |date=27 July 2002 |access-date=26 September 2009 |url-status=dead |archive-url=https://web.archive.org/web/20110708082826/http://www.hinduonnet.com/2002/07/27/stories/2002072703730400.htm |archive-date=8 July 2011 }} and can maintain an average speed of {{convert|32|km/h|mph|abbr=on}} over a distance of {{convert|1.1|km|mi|abbr=on}}. The system is extendable to eight coaches, and platforms have been designed accordingly.

Phase II rolling stock is supplied by Bombardier Transportation, which received an order for 614 cars at a cost of about {{USD|1.1 billion}}.{{cite web |url=http://www.bombardier.com/en/transportation/media-centre/press-releases/details?docID=0901260d8019ab49 |title=Bombardier to Deliver Further 76 MOVIA Metro Cars to Delhi Metro from Savli India Site |work=Press Release |publisher=Bombardier |date=5 September 2011 |access-date=3 November 2011 |url-status=live |archive-url=https://web.archive.org/web/20111116062057/http://www.bombardier.com/en/transportation/media-centre/press-releases/details?docID=0901260d8019ab49 |archive-date=16 November 2011 }} Although the initial trains were made in Görlitz, Germany and Sweden, the remainder will be built at Bombardier's factory in Savli (near Vadodara).{{cite web|url=http://www.projectsmonitor.com/detailnews.asp?newsid=14183 |title=Bombardier to supply coaches to Delhi Metro |website=projectsmonitor.com |url-status=dead |archive-url=https://web.archive.org/web/20100114191152/http://projectsmonitor.com/detailnews.asp?newsid=14183 |archive-date=14 January 2010 }} The four- and six-car trains have a capacity of 1,178 and 1,792 commuters each, respectively. Coaches have closed-circuit television (CCTV) cameras with eight-hour backup, chargers for cell phones and laptops, and improved climate control.{{Cite news |url=https://timesofindia.indiatimes.com/city/delhi/Metro-to-get-swankier-bigger-coaches/articleshow/5019847.cms |archive-url=https://web.archive.org/web/20121105163832/http://articles.timesofindia.indiatimes.com/2009-09-17/delhi/28098189_1_train-sets-present-trains-anand-vihar |url-status=live |archive-date=5 November 2012 |title=Metro to get swankier, bigger coaches |newspaper=The Times of India |date=17 September 2009 |access-date=26 September 2009}}

Standard-gauge rolling stock is manufactured by BEML at its factory in Bangalore, and most of these trains are supplied to BEML by Hyundai Rotem. The four-car trains have a capacity of 1,506 passengers,{{Cite news|url=https://economictimes.indiatimes.com/industry/transportation/railways/beml-delivers-indias-1st-standard-gauge-metro-car/articleshow/4999078.cms|title=BEML delivers India's 1st standard gauge metro car|date=11 September 2009|newspaper=The Economic Times|access-date=15 January 2018|archive-url=https://web.archive.org/web/20180115185943/https://economictimes.indiatimes.com/industry/transportation/railways/beml-delivers-indias-1st-standard-gauge-metro-car/articleshow/4999078.cms|archive-date=15 January 2018|url-status=live|location=New Delhi}} accommodating 50 seated and 292 standing passengers in each coach. The trains, with CCTV cameras in and outside the coaches, chargers for mobile phones and laptops, improved climate control and microprocessor-controlled disc brakes,{{cite news|url=http://www.thehindu.com/todays-paper/Trial-run-begins-on-first-standard-gauge-Metro-line/article16565587.ece|title=Trial run begins on first standard gauge Metro line|last=Ramachandran|first=Smriti Kak|date=30 July 2009|newspaper=The Hindu|access-date=15 January 2018|archive-url=https://web.archive.org/web/20180303140135/http://www.thehindu.com/todays-paper/Trial-run-begins-on-first-standard-gauge-Metro-line/article16565587.ece|archive-date=3 March 2018|url-status=live}} will be capable of maintaining an average speed of {{convert|34|km/h|mph|abbr=on}} over a distance of {{convert|1.1|km|mi|abbr=on}}.

Eight six-car trains supplied by CAF Beasain were imported from Spain.{{cite news |url=http://www.indianexpress.com/news/airport-line-handed-over-to-reliance-infra/621131/0 |title=Airport line handed over to Reliance Infra |newspaper=The Indian Express |date=20 May 2010 |access-date=5 June 2010 |url-status=live |archive-url=https://web.archive.org/web/20100905214535/http://www.indianexpress.com/news/airport-line-handed-over-to-reliance-infra/621131/0 |archive-date=5 September 2010 }} CAF held five-percent equity in the DAME project, and Reliance Infrastructure held the remaining 95 percent{{cite web |url=http://www.caf.net/img/prensa/notprensa/20090602113223railway3_may2009.pdf |title=Delhi Airport line contracts finalised |publisher=Construcciones y Auxiliar de Ferrocarriles |url-status=dead |archive-url=https://web.archive.org/web/20110718025505/http://www.caf.net/img/prensa/notprensa/20090602113223railway3_may2009.pdf |archive-date=18 July 2011 }} before DMRC took over operations. Trains on this line have noise reduction and padded fabric seats. Coaches are equipped with LCD screens for entertainment and flight information. Trains have an event recorder which can withstand high levels of temperature and impact, and wheels have a flange-lubrication system for reduced noise and improved comfort.{{Cite news |url=http://timesofindia.indiatimes.com/city/delhi/Delhi-Metro-to-reserve-coach-for-women-from-October-2/articleshow/6629919.cms |title=Delhi Metro to reserve coach for women from October 2 |newspaper=The Times of India |date=26 September 2010 |access-date=27 September 2010 |url-status=dead |archive-url=https://web.archive.org/web/20100928204005/http://timesofindia.indiatimes.com/city/delhi/Delhi-Metro-to-reserve-coach-for-women-from-October-2/articleshow/6629919.cms |archive-date=28 September 2010 }}

File:Metrocoach.jpg coach]]

File:Delhi metro 1.jpg

The metro uses cab signaling with a centralised automatic train control system consisting of automatic operation, protection and signaling modules.{{cite web |url=http://www.delhimetrorail.com/corporates/technicalnotes/tn_signalling.html |title=Technical Notes: Signalling |publisher=DMRC |archive-url=https://web.archive.org/web/20080312053117/http://www.delhimetrorail.com/corporates/technicalnotes/tn_signalling.html |archive-date=12 March 2008 |access-date=23 November 2009}} A 380 MHz digital trunked TETRA radio communication system from Motorola Solutions is used on all lines to carry voice and data information.{{cite web |title=Delhi Metro Railway Corporation, India |url=https://www.motorolasolutions.com/content/dam/msi/docs/business/solutions/tetra_solutions/transport/tetra_rail/_document/tetra_transportation_india_delhi_metro_railway_corporation_gloria.pdf |access-date=3 January 2010 |publisher=Motorola Electronics |archive-date=29 September 2020 |archive-url=https://web.archive.org/web/20200929005736/https://www.motorolasolutions.com/content/dam/msi/docs/business/solutions/tetra_solutions/transport/tetra_rail/_document/tetra_transportation_india_delhi_metro_railway_corporation_gloria.pdf |url-status=dead }} For the Blue Line, Siemens supplied the electronic interlocking Sicas, the Vicos OC 500 operation-control system and the LZB 700 M automation-control system.{{cite web |url=http://references.transportation.siemens.com/refdb/showReference.do?r=1881&div=2&l=en |title=Metro Line 3, New Delhi, India |publisher=Siemens |access-date=6 July 2008 |url-status=dead |archive-url=https://web.archive.org/web/20081211054343/http://references.transportation.siemens.com/refdb/showReference.do?r=1881&div=2&l=en |archive-date=11 December 2008 }} An integrated system with optical fibre cable, on-train radio, CCTV, and a centralised clock and public address system is used for telecommunication during normal operations and emergencies.{{cite web |url=http://www.delhimetrorail.com/corporates/technicalnotes/tn_telecom.html |title=Technical Notes: Telecommunication |publisher=DMRC |archive-url=https://web.archive.org/web/20071226184202/http://www.delhimetrorail.com/corporates/technicalnotes/tn_telecom.html |archive-date=26 December 2007 |access-date=23 November 2009}} Alstom supplied the signaling system for the Red and Yellow Lines, and Bombardier Transportation supplied its CITYFLO 350 signaling system for the Green and Violet Lines.

The Airport Express line introduced WiFi service at all its stations on 13 January 2012.{{cite news |url=http://www.delhimetrotimes.in/delhi-metro-airport-express-line.html |title=Delhi Airport Metro Express |newspaper=Delhi metro times |access-date=4 August 2012|archive-url=https://web.archive.org/web/20150120003705/http://www.delhimetrotimes.in/delhi-metro-airport-express-line.html |archive-date=20 January 2015 }} Connectivity in trains is expected in the future. WiFi service is provided by YOU Broadband and Cable India.{{cite news |url=http://www.sify.com/finance/reliance-metro-airport-express-goes-wifi-with-you-broadband-news-press-releases-mbxlkdhbhiasi.html |archive-url=https://web.archive.org/web/20180822113920/http://www.sify.com/finance/reliance-metro-airport-express-goes-wifi-with-you-broadband-news-press-releases-mbxlkdhbhiasi.html |url-status=dead |archive-date=22 August 2018 |title=Reliance Metro Airport Express, WiFi-enabled, EVS Chakravarthy, CEO YOU Broadband |newspaper=Business Wire India |access-date=22 August 2018 }} In August 2017, Wifi service began at all the 50 stations of the Blue Line.{{cite news |title=Delhi Metro launches WiFi on Blue Line stations |url=https://economictimes.indiatimes.com/industry/transportation/railways/delhi-metro-launches-wifi-on-blue-line-stations/articleshow/60222339.cms |access-date=22 August 2018 |work=The Economic Times |date=25 August 2017}} A fully automated, operator-less train system was offered to the metro by the French technology firm Thales.{{cite news|url=http://economictimes.indiatimes.com/news/news-by-industry/transportation/railways/delhi-metro-offered-fully-automated-driverless-train-system/articleshow/13485201.cms |title=Delhi Metro offered {{sic |hide=y|fully|-}}automated, driverless train system |access-date=25 May 2012 |url-status=dead |archive-url=https://archive.today/20120721153908/http://economictimes.indiatimes.com/news/news-by-industry/transportation/railways/delhi-metro-offered-fully-automated-driverless-train-system/articleshow/13485201.cms |archive-date=21 July 2012 }}

File:A Rooftop Solar System of Delhi Metro at the Anand Vihar metro station.jpg

The metro has received awards for environmentally-friendly practices from organisations including the United Nations,{{Cite news|url=https://timesofindia.indiatimes.com/city/delhi/Delhi-Metro-gets-UN-certificate-for-preventing-carbon-emission/articleshow/4169221.cms?referral=PM|title=Delhi Metro gets UN certificate for preventing carbon emission|date=22 February 2009|newspaper=The Times of India|access-date=15 January 2018|archive-url=https://web.archive.org/web/20140517111354/http://timesofindia.indiatimes.com/city/delhi/Delhi-Metro-gets-UN-certificate-for-preventing-carbon-emission/articleshow/4169221.cms?referral=PM|archive-date=17 May 2014|url-status=live|location=New Delhi}} RINA,{{cite web |url=http://www.delhimetrorail.com/corporates/ecofriendly/ohsas18001.html |title=Delhi Metro gets OHSAS 18001 |publisher=DMRC |archive-url=https://web.archive.org/web/20080607074341/http://www.delhimetrorail.com/corporates/ecofriendly/ohsas18001.html |archive-date=7 June 2008 |access-date=10 September 2009}} and the International Organization for Standardization; it is the second metro in the world, after the New York City Subway, to be ISO 14001 certified for environmentally-friendly construction.{{cite web|url=http://www.usaid.gov/in/newsroom/press_releases/dec24_2.htm |title=Press Release: Delhi Metro Receives ISO 14001 For Eco-friendly Systems |publisher=USAID |date=24 December 2002 |access-date=27 September 2010 |url-status=dead |archive-url=https://web.archive.org/web/20090913034728/http://www.usaid.gov/in/newsroom/press_releases/dec24_2.htm |archive-date=13 September 2009 }} By March 2023, 64 metro stations, four sections on the central verge between piers, and 12 other Phase I and II locations on the network have rainwater harvesting for environmental protection;{{cite web |url=https://backend.delhimetrorail.com/documents/1337/Rain-Water-Harvesting.pdf |title=Details of Rain Water Harvesting in Various Metro Lines / Stations |website=backend.delhimetrorail.com |publisher=Delhi Metro Rail Corporation |access-date=21 December 2023}}{{Cite news |url=https://timesofindia.indiatimes.com/city/delhi/Delhi-Metro-shows-the-way-with-water-harvesting-units/articleshow/1242306.cms |archive-url=https://web.archive.org/web/20121105163845/http://articles.timesofindia.indiatimes.com/2005-09-26/delhi/27867066_1_rain-water-water-harvesting-subcity |url-status=live |archive-date=5 November 2012 |title=Delhi Metro shows the way with water harvesting units |newspaper=The Times of India |date=26 September 2005 |access-date=27 September 2010}} all 27 Phase-IV elevated stations will also harvest rainwater, and 52 recharge pits are being constructed for this purpose.{{cite news |last=Agarwal |first=Priyangi |date=13 March 2023 |title=Metro Phase-IV elevated stations in Delhi to go for rainwater harvesting |url=https://timesofindia.indiatimes.com/city/delhi/metro-phase-iv-elevated-stations-in-delhi-to-go-for-rainwater-harvesting/articleshow/98591963.cms |work=Times of India |location=New Delhi |access-date=21 December 2023}} It is the world's first railway project to earn carbon credits after being registered with the United Nations under the UN's Clean Development Mechanism,{{Cite news|url=https://economictimes.indiatimes.com/industry/transportation/railways/delhi-metro-is-first-rail-project-to-earn-carbon-credits/articleshow/2676012.cms|title=Delhi Metro is first rail project to earn carbon credits|date=5 January 2008|newspaper=The Economic Times|access-date=22 January 2018|archive-url=https://web.archive.org/web/20180122181652/https://economictimes.indiatimes.com/industry/transportation/railways/delhi-metro-is-first-rail-project-to-earn-carbon-credits/articleshow/2676012.cms|archive-date=22 January 2018|url-status=live|location=New Delhi}} and has earned 400,000 carbon credits with the regenerative braking systems on its trains.{{cite news|url=http://indianexpress.com/article/cities/delhi/delhi-metro-on-track-to-earn-carbon-credits/|title=Delhi Metro on track to earn carbon credits|last=Sinha|first=Neha|date=20 December 2009|newspaper=The Indian Express|access-date=22 January 2018|url-status=live|archive-url=https://web.archive.org/web/20180123072420/http://indianexpress.com/article/cities/delhi/delhi-metro-on-track-to-earn-carbon-credits/|archive-date=23 January 2018}}

DMRC installed the metro's first rooftop solar power plant at the Dwarka Sector-21 station in 2014. The network received 35 percent of its energy from renewable sources by April 2023, which it intends to increase to 50 percent by 2031. Of this, 30 percent comes from the Rewa Ultra Mega Solar park in Madhya Pradesh;{{Cite web |title=60% of Delhi Metro now powered by solar energy from Madhya Pradesh |url=https://www.worldbank.org/en/news/feature/2019/06/05/delhi-metro-goes-solar |access-date=2023-02-05 |website=World Bank |language=en}} four percent (50 MWp) comes from rooftop solar panels, and one percent comes from a waste-to-energy plant in Ghazipur.{{cite news |last=Agarwal |first=Priyangi |date=4 April 2023 |title=Elevated plans: Delhi Metro eyes solar share of 50% in 8 years |url=https://timesofindia.indiatimes.com/city/delhi/elevated-plans-delhi-metro-eyes-solar-share-of-50-in-8-years/articleshow/99222738.cms |work=Times of India |location=New Delhi |access-date=22 December 2023}}{{cite news|url=https://timesofindia.indiatimes.com/city/delhi/Metro-mulls-solar-panels-at-stations-to-go-green/articleshow/13829728.cms?referral=PM|title=Metro mulls solar panels at stations to go green|date=5 June 2012|newspaper=The Times of India|access-date=22 January 2018|archive-url=https://web.archive.org/web/20180122191758/https://timesofindia.indiatimes.com/city/delhi/Metro-mulls-solar-panels-at-stations-to-go-green/articleshow/13829728.cms?referral=PM|archive-date=22 January 2018|url-status=live|location=New Delhi}} DMRC has installed solar panels at 142 locations: 15 depots, 93 stations, and 34 other buildings.{{cite news |last=Roy |first=Sidhartha |date=24 May 2022 |title=Vertical solar panels to help bridge power gap for metro |url=https://www.delhimetrorail.com/pages/en/news_details/416 |work=Times of India |location=New Delhi |access-date=22 December 2023}}

The metro has been promoted as an integral part of community infrastructure, and artwork depicting the local way of life has been displayed at stations.{{rp|284}} Students at local art colleges have designed murals at metro stations,{{Cite news|url=https://timesofindia.indiatimes.com/city/delhi/Vibrant-murals-bring-cheer/articleshow/31101558.cms?referral=PM|title=Vibrant murals bring cheer|last=Mukherjee|first=Anuradha|date=13 December 2002|newspaper=The Times of India|access-date=22 January 2018|archive-url=https://web.archive.org/web/20180122191740/https://timesofindia.indiatimes.com/city/delhi/Vibrant-murals-bring-cheer/articleshow/31101558.cms?referral=PM|archive-date=22 January 2018|url-status=live|location=New Delhi}} and the viaduct pillars of some elevated sections have been decorated with mosaic murals created by local schoolchildren.{{cite news|author=Preeti Jha |url=http://www.expressindia.com/latest-news/murals-by-salwan-public-school-students-decorate-metro-pillars-on-pusa-road/226660/ |title=Murals by Salwan Public School students decorate Metro pillars on Pusa Road |newspaper=The Indian Express |date=10 October 2007 |access-date=2 February 2010 |url-status=dead |archive-url=https://web.archive.org/web/20121014072617/http://www.expressindia.com/latest-news/murals-by-salwan-public-school-students-decorate-metro-pillars-on-pusa-road/226660/ |archive-date=14 October 2012 }} The metro station at INA Colony has a gallery of artwork and handicrafts from across India,{{cite news|url=http://archive.indianexpress.com/news/at-ina-metro-station-a-gallery-for-traditional-art-crafts/676125/0|title=At INA Metro station, a gallery for traditional art, crafts|date=2 September 2010|newspaper=The Indian Express|access-date=22 January 2018|archive-url=https://web.archive.org/web/20160201164122/http://archive.indianexpress.com/news/at-ina-metro-station-a-gallery-for-traditional-art-crafts/676125/0|archive-date=1 February 2016|url-status=live|location=New Delhi}} and all stations on the Central Secretariat – Qutub Minar section of the Yellow Line have panels depicting Delhi's architectural heritage.{{cite news |author=Smriti Kak Ramachandran |url=http://www.hindu.com/2010/09/02/stories/2010090252320200.htm |title=Delhi metro gets a handicrafts gallery |date=2 September 2010 |access-date=21 September 2010 |url-status=dead |archive-url=https://web.archive.org/web/20110629014903/http://www.hindu.com/2010/09/02/stories/2010090252320200.htm |newspaper=The Hindu |archive-date=29 June 2011 }} The Nobel Memorial Wall at Rajiv Chowk has portraits of the seven Indian Nobel laureates: Rabindranath Tagore, CV Raman, Hargobind Khorana, Mother Teresa, Subrahmanyan Chandrasekhar, Amartya Sen and Venkatraman Ramakrishnan.

A number of films have been shot in the Delhi Metro;{{Cite news |last=Sharma |first=Garima |title=Delhi Metro in Bollywood films |work=The Times of India |url=https://timesofindia.indiatimes.com/entertainment/hindi/bollywood/news/delhi-metro-in-bollywood-films/articleshow/7071324.cms |access-date=2023-04-07 |issn=0971-8257}}{{Cite news |last=Lal |first=Niharika |title=From 5-6 per year, films shot in Metro down to 1 |work=The Times of India |url=https://timesofindia.indiatimes.com/entertainment/hindi/bollywood/news/from-5-6-per-year-films-shot-in-metro-down-to-1/articleshow/51783309.cms |access-date=2023-04-07 |issn=0971-8257}} the first was Bewafaa in November 2005.{{Cite news |date=2016-03-26 |title=Delhi Metro's fleeting 15 minutes of fame |language=en-IN |work=The Hindu |url=https://www.thehindu.com/news/national/other-states/delhi-metros-fleeting-15-minutes-of-fame/article8400611.ece |access-date=2023-04-07 |issn=0971-751X}} Delhi-6, Love Aaj Kal, PK, and Paa also have scenes filmed inside Delhi Metro trains and stations.{{Cite web |date=2014-07-21 |title=Delhi Metro finds many takers in film world |url=https://www.hindustantimes.com/delhi/delhi-metro-finds-many-takers-in-film-world/story-qeqAhJiX1Sz089Enx8tdFM.html |access-date=2023-04-07 |website=Hindustan Times |language=en}}{{Cite web |title=Amitabh, Abhishek shoot for Paa in Delhi Metro |url=https://www.indiatoday.in/headlines-today-top-stories/story/amitabh-abhishek-shoot-for-paa-in-delhi-metro-49030-2009-05-30 |access-date=2023-04-07 |website=India Today |date=31 May 2009 |language=en}} Bang Bang! was filmed near the Mayur Vihar Extension metro station in March 2014,{{Cite news |date=2014-03-03 |title=Hrithik-Katrina film shoot creates traffic mess |work=The Times of India |url=https://timesofindia.indiatimes.com/city/delhi/hrithik-katrina-film-shoot-creates-traffic-mess/articleshow/31299777.cms |access-date=2023-04-07 |issn=0971-8257}}{{Cite web |date=2014-03-02 |title=Hrithik Roshan, Katrina Kaif's Bang Bang shoot halts Delhi traffic |url=https://www.hindustantimes.com/bollywood/hrithik-roshan-katrina-kaif-s-bang-bang-shoot-halts-delhi-traffic/story-ULyOd57dllsTyNABc8dByK.html |access-date=2023-04-07 |website=Hindustan Times |language=en}} and the 2019 film War was filmed in the metro.{{Cite web |date=2019-10-05 |title=War is entertaining and worth every penny |url=https://sundayguardianlive.com/culture/war-entertaining-worth-every-penny |access-date=2023-04-07 |website=The Sunday Guardian Live |language=en-US}}

• Urban rail transit in India
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• Metro Tunneling Group

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• {{Cite news |author=Rashmi Sadana |url=https://blogs.wsj.com/indiarealtime/2012/06/02/metrocity-journal-up-up-and-away/ |title=Metrocity Journal: Up, Up and Away |newspaper=The Wall Street Journal |date=30 May – 2 June 2012}}
• {{Cite journal |author=Rashmi Sadana |title=On the Delhi Metro: An Ethnographic View |journal=Economic and Political Weekly |volume=45 |issue=46 |pages=77–83 |date=13 November 2010}}
• {{cite news |author=G. S. Dhillon |url=http://www.tribuneindia.com/2004/20040129/science.htm#1 |title=Trenchless tunnelling |newspaper=The Tribune |date=29 January 2004}}
• {{Cite book |title=A dream revisited: an archival journey into the making of the Delhi Metro Rail |publisher=DMRC |year=2003 |oclc=54073649 }}
• {{Cite book |title=A journey to remember |publisher=DMRC |year=2008 |page=94 |oclc=300027063 }}

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• {{Official website}}
• [https://www.delhimetrorail.com/network_map Delhi Metro route map]
• [https://www.indiacontent.in/search-topic/delhi-metro Collection of Delhi Metro Images]

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{{Rapid transit in India}}

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{{Internationally Metro Organizations}}

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