Aronai Express

{{Short description|Train of India}}

{{Use dmy dates|date=September 2015}}

{{Use Indian English|date=September 2015}}

{{italictitle}}

{{Infobox rail service

| name = Aronai Express

| image =

| caption =

| type = Superfast Express

| first = * {{start date and age|df=yes|1987|04|14}} (Inaugural run)

• {{start date and age|df=yes|2017|11|21}} (extended upto {{stnlnk|Silchar}})

| last =

| operator = Northeast Frontier Railway

| ridership =

| start = {{stnlnk|Thiruvananthapuram Central}} (TVC)

| stops = 55

| end = {{stnlnk|Silchar}} (SCL)

| distance = {{convert|3915|km|0|abbr=on}}

| journeytime = 71 hrs 20 mins

| frequency = Weekly

| class = AC 2 Tier, AC 3 Tier, Sleeper Class, General Unreserved

| seating = Yes

| sleeping = Yes

| autorack =

| catering = Available

| observation = Large windows

| entertainment =

| baggage = Available

| otherfacilities = Below the seats

| stock = LHB coach

| gauge = {{track gauge|1676mm|al=on|allk=on}}

| electrification = Partial

| trainnumber = 12507 / 12508

| speed = {{convert|55|km/h|0|abbr=on}} average including halts.

| map = File:(Silchar - Trivandrum) Express route map.png

| map_state =

}}

The 12507 / 12508 Aronai Express is a superfast express train belonging to Indian Railways. It is operated by Northeast Frontier Railway zone that runs between {{stnlnk|Thiruvananthapuram Central}} in Kerala and {{stnlnk|Silchar}} in Assam. It is the 28th longest train service in the world. Initially, Thiruvananthapuram–Silchar Aronai Superfast Express ran between {{stnlnk|Thiruvananthapuram Central}} and {{stnlnk|Guwahati}}. On 21 November 2017, it was extended to Silchar.{{cite news |date=22 November 2017 |title=Thiruvananthapuram – Guwahati Superfast extended to Silchar |newspaper=Kerala Rail News |url=https://keralarailnews.com/289/thiruvananthapuram-guwahati-weekly-express-train-extended-to-silchar |access-date=9 August 2022}} After this extension, it is now the second longest running train in India.

The express train service was started on 14 April 1987. It operates as train number 12507 from Thiruvananthapuram Central to Silchar and as train number 12508 in the reverse direction serving the 8 states of Assam, West Bengal, Bihar, Jharkhand, Odisha, Andhra Pradesh, Tamil Nadu and Kerala.{{Cite web |title=Aronai Express (12507) Route, Time Table, Schedule |url=https://www.ndtv.com/indian-railway/aronai-express-12507-train |access-date=9 August 2022 |website=Railbeeps}}{{Cite web |date=13 August 2018 |title=New train timetable from 15th August, 2018; Details here |url=https://kalingatv.com/state/new-train-timetable-from-15th-august-2018-details-here/ |access-date=9 August 2022 |website=Kalinga TV}}