Geological Survey of India

{{Infobox government agency

| type = Government agency

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| logo = Geological_Survey_of_India_Logo.png

| logo_size = 200px

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| nativename = भारतीय भूवैज्ञानिक सर्वेक्षण

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| formed = {{Start date and age|4 March 1851}}

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| jurisdiction = Government of India

| headquarters = Kolkata, West Bengal, India

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| employees =

| budget = {{INRConvert|800|c}} (2019–20){{cite web|url=https://www.gsi.gov.in/webcenter/portal/OCBIS/pageQuickLinks/pageFinance?_afrLoop=6181794949698665&_adf.ctrl-state=x6p6y0dgg_1#!%40%40%3F_afrLoop%3D6181794949698665%26_adf.ctrl-state%3Dx6p6y0dgg_5 |title=Finance |publisher=Gsi.gov.in |date= |accessdate=2022-08-12}}

| chief1_name = Shri Asit Saha

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| website = {{URL|https://www.gsi.gov.in/|gsi.gov.in/}}

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| agency_name = Geological Survey of India

| agency_type = Geological survey

| parent_agency = Ministry of Mines

| picture = Central Headquarters - Geological Survey of India - Indian Museum Campus - Kolkata 2014-02-14 3249.JPG

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| picture_caption = Central Headquarters. 27 JN Road, Kolkata.

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The Geological Survey of India (GSI) is a scientific agency of India. It was founded in 1851, as a Government of India organization under the Ministry of Mines, one of the oldest of such organisations in the world and the second oldest survey in India after the Survey of India (founded in 1767), for conducting geological surveys and studies of India, and also as the prime provider of basic earth science information to government, industry and general public, as well as the official participant in steel, coal, metals, cement, power industries and international geoscientific forums.

History

File:GeologicalSurveyIndia1870.jpg, Robert Bruce Foote, William Theobald, F. R. Mallet, Valentine Ball, Wilhelm Heinrich Waagen, W. L. Willson; Sitting: A. Tween, W. King, Thomas Oldham, Henry Benedict Medlicott, C. A. Hackett.]]

Formed in 1851 by East India Company, the organization's roots can be traced to 1836 when the "Coal Committee", followed by more such committees, was formed to study and explore the availability of coal in the eastern parts of India. David Hiram Williams, one of the first surveyors for the British Geological Survey, was appointed 'Surveyor of coal districts and superintendent of coal works, Bengal' on 3 December 1845 and arrived in India the following February. The phrase "Geological Survey of India" was first used on his Dec 1847 map of the Damoodah and Adji Great Coal Field,[http://daten.digitale-sammlungen.de/~db/0007/bsb00079409/images/ Damoodah and Adji Great Coal Field Map] {{Webarchive|url=https://web.archive.org/web/20180406183317/http://daten.digitale-sammlungen.de/~db/0007/bsb00079409/images/ |date=6 April 2018 }}, Bavarian State Library. together with Horizontal[http://daten.digitale-sammlungen.de/~db/0008/bsb00084611/images/ GSI Map of horizontal sections 1 & 2] {{Webarchive|url=https://web.archive.org/web/20171201032943/http://daten.digitale-sammlungen.de/~db/0008/bsb00084611/images/ |date=1 December 2017 }}, Bavarian State Library.[http://daten.digitale-sammlungen.de/~db/0008/bsb00084610/images GSI Map of horizontal sections 3 & 4] {{Webarchive|url=https://web.archive.org/web/20171201131314/http://daten.digitale-sammlungen.de/~db/0008/bsb00084610/images/ |date=1 December 2017 }}, Bavarian State Library. and Vertical sections of the map.[http://daten.digitale-sammlungen.de/~db/0008/bsb00084612/images/ GSI Map of vertical section 5] {{Webarchive|url=https://web.archive.org/web/20171201034359/http://daten.digitale-sammlungen.de/~db/0008/bsb00084612/images/ |date=1 December 2017 }}, Bavarian State Library. On 4 February 1848, he was appointed the "Geological Surveyor of the Geological Survey of India", but he fell off his elephant and, soon after, died with his assistant, F. B. Jones, of 'jungle fever' on 15 November 1848,Allen's Indian Mail, Vol VII, No 117 London, 22 January 1849, p41. after which John McClelland took over as the "Officiating Surveyor" until his retirement on 5 March 1851.{{cite journal|last=Kumar|first=Deepak|title=Economic Compulsions and the Geological Survey of India|journal=Indian Journal of History of Science|date=1982|volume=17|issue=2|pages=289–300}}{{cite book |last=Chakrabarty |first=S |year=2012 |chapter=Geological Survey of India |chapter-url=http://en.banglapedia.org/index.php?title=Geological_Survey_of_India |editor1-last=Islam |editor1-first=Sirajul |editor1-link=Sirajul Islam |editor2-last=Jamal |editor2-first=Ahmed A. |title=Banglapedia: National Encyclopedia of Bangladesh |edition=Second |publisher=Asiatic Society of Bangladesh |access-date=6 December 2015 |archive-date=8 December 2015 |archive-url=https://web.archive.org/web/20151208121107/http://en.banglapedia.org/index.php?title=Geological_Survey_of_India |url-status=live }}

Until 1852, Geological Survey primarily remained focused on exploration for coal, mainly for powering steam transport, oil reserves, and ore deposits, when Sir Thomas Oldham, father of Richard Dixon Oldham, broadened the ambit of the scope of functioning of the Geological Survey of India by advancing the argument with the government that it was not possible to find coal without first mapping the geology of India. Thus, the Geological Survey commenced to map the rock types, geological structures and relative ages of different rock types . The age of rock strata was estimated from the presence of index fossils, which consumed much of the geologists' efforts in finding these index fossils, as the method of Radiometric dating for estimating the age of rock strata was not developed at that time. In 1869 Frederick Richard Mallet was first to visit Ramgarh crater.Mallet, F. R., 1869, Memoir, Geological Survey of India, vol 7, page 129.BALASUNDARAM, M., DUBE, A. Ramgarh, 1973, "Structure, India", Nature (journal), 242, 40 doi:10.1038/242040a0. Later studies include by those of Arthur Lennox Coulson. This company was very last which started looting India's wealth, in the form of gold, power, money, etc..

In 19th century GSI undertook several surveys including Great Trigonometrical Survey, 1869 Kailash-Mansarovar expedition, 1871-1872 Shigache–Lhasa expedition, 1873-1874 Yarkand–Kashgar expedition, second expedition of this area by Sir Thomas Douglas Forsyth, 1878-1882 Darjeeling–Lhasa–Mongolia expedition, etc.Clements R. Markham, 1878, "A Memoir on The Indian Surveys", 2nd Ed., W H Allen & Co., London, p.189.Charles E. D. Black, 1891, "A Memoir on The Indian Surveys (1875-90)" , London , p.168.Derek J. Waller, 2004, "The Pundits: British Exploration of Tibet and Central Asia," University Press of Kentucky.Account of the Pundit's Journey in Great Tibet - Capt. H. Trotter, The Journal of the Royal Geographical Society (1877). The native surveyors were called pandit, some notable ones include cousins Nain Singh Rawat and Krishna Singh Rawat.Peter Hopkirk, 1982, "Trespassers on the Roof of the World: The Race for Lhasa", Oxford University Press.

In 19th and early 20th century GSI made important contributions to Seismology by its studies and detailed reports on numerous Indian earthquakes. Richard Dixon Oldham, like his father also worked for GSI, first correctly identified p- and s-waves, and hypothesised and calculated the diameter of the Earth's core.

On 8 April 2017 GSI began pilot project, with the first ever aerial survey of mineral stocks by GSI, to map the mineral stocks up to a depth of 20 km using specially-equipped aircraft.{{cite web|title=In a first in India, GSI to use modern aircraft to map mineral stocks|url=http://www.financialexpress.com/india-news/in-a-first-in-india-gsi-to-use-modern-aircraft-to-map-mineral-stocks/618461/|website=The Financial Express|access-date=6 April 2017|date=7 April 2017|archive-date=7 April 2017|archive-url=https://web.archive.org/web/20170407144903/http://www.financialexpress.com/india-news/in-a-first-in-india-gsi-to-use-modern-aircraft-to-map-mineral-stocks/618461/|url-status=live}}

The GSI was restructured into 5 Missions, respectively relating to "Baseline Surveys";"Mineral resource Assessments";"Geoinformatics";"Multi-disciplinary Geosciences"; and "Training and Capacity Building", on the basis of the Report of a High-level Committee chaired by Mr S.Vijay Kumar{{cite web|url=http://www.teriin.org/index.php?option=com_aboutus&id=3158&p=emp&view=profile&Itemid=181|title=TERI: Innovative Solutions for Sustainable Development - India|access-date=27 December 2017|archive-date=5 October 2018|archive-url=https://web.archive.org/web/20181005122640/http://www.teriin.org/index.php?option=com_aboutus&id=3158&p=emp&view=profile&Itemid=181|url-status=live}} Additional Secretary in the Ministry of Mines of the Government of India.

The superintendents and directors

Sr. No. !Name !Period !Country
class="wikitable"
1.	Dr. Thomas Oldham, The Superintendent	1851–1876	Dublin, Republic of Ireland
2.	H. B. Medlicott, The Superintendent	1876–1885	Loughrea, County Galway, Ireland
3.	H. B. Medlicott, The Director	1885–1887	Loughrea, County Galway, Ireland
4.	William King Jr.	1887–1894	Ireland; an Anglo-Irish
5.	C.L.Griesbach	1894–1903	Vienna, Austria
6.	Sir T. H. Holland	1903–1910	Helston, Cornwall, England
7.	Sir Henry. H. Hayden	1910–1921	Derry, Ireland
8.	Sir Edwin Hall Pascoe	1921–1932	England
9.	Sir L.L. Fermor	1932–1935	Peckham, south London, England
10.	Dr. A. M. Heron	1935–1939	British, Duddingston, Edinburgh, Scotland
11.	Sir Cyril S. Fox	1939–1943\|
12.	Edward Leslie Gilbert Clegg	1943–1944	Manchester, England
13.	Henry Crookshank	1944–1945\|
14.	J.A. Dunn	1945\|
15.	William Dixon West	1945–1951	Bournemouth, England
16.	M. S. Krishnan, First Indian Director	1951–1955	Thanjavur, Tamil Nadu
17.	V. P. Sondhi	1955–1958\|
18.	B. C. Roy	1958–1964\|