Tatanagar–Alappuzha Express

{{Short description|Train in India}}

{{Use dmy dates|date=February 2019}}

{{Use Indian English|date=February 2019}}

{{Infobox rail service

| name = Tatanagar-Ernakulam Express

| image =

| image_width =

| caption =

| type = Express

| locale =

| first = {{start date and age|df=yes|1970|10|01}}

| operator = South Eastern Railway

| ridership =

| start = {{stnlnk|Tatanagar}} (TATA)

| stops = 50

| end = {{stnlnk|Ernakulam}} (ERS)

| distance = {{convert|2297|km|0|abbr=on}}

| journeytime = 44 hrs 55 mins

| frequency = Daily {{efn|Runs seven days in a week for every direction.}}

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

| seating = No

| sleeping = Yes

| autorack =

| catering = On-board catering,
E-catering

| observation = Large windows

| entertainment =

| baggage = No

| otherfacilities = Below the seats

| stock = LHB coach

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

| electrification =

| trainnumber = 18189 / 18190

| speed = {{convert|51|km/h|0|abbr=on}} average including halts.

| map =

| map_state =

}}

The 18189 / 18190 Tatanagar–Ernakulam Express was an express train belonging to South Eastern Railway zone that ran between Tatanagar Junction and Ernakulam Junction in India. It was operated with 18189/18190 train numbers on daily basis. Till 2020, it ran as a link train between Tata Nagar to Alappuzha by attaching and detaching with Dhanbad - Alappuzha Express at Rourkela. Since, link train services in India was discontinued, this link train service was stopped for many months... After 2021, it was started as a independed train on a weekly basis with the same train number 18189/18190 between Tata Nagar and Ernakulam Junction.

The train service was stopped till Ernakulam instead of Alappuzha. It runs with different timings and route had also been changed. It runs via Gudivada, instead of Eluru route and bypasses Chennai Central by having additional stoppage at Perambur and again bypasses Coimbatore junction with additional stoppage at Podanur Junction. In 2023 it was changed into Tri-Weekly service and after 2024 May it started to run as a daily train service, connecting Jharkhand with Andhra Pradesh, Tamilnadu and Kerala. At present, it runs as 18189/18190 Tatanagar - Ernakulam - Tatanagar Express.{{cite news|url=http://www.thehindu.com/todays-paper/tp-national/tp-tamilnadu/changes-in-operation-of-trains-on-july-10-11/article19248263.ece|title=Changes in operation of trains on July 10 & 11 - TAMIL NADU|website=The Hindu|date=9 July 2017 |accessdate=2017-09-05}}{{cite news|url=http://www.thehindu.com/todays-paper/tp-national/tp-tamilnadu/trains-rescheduled/article19097355.ece|title=Trains rescheduled - TAMIL NADU|website=The Hindu|date=17 June 2017 |accessdate=2017-09-05}}{{cite web|url=https://www.telegraphindia.com/1170616/jsp/jharkhand/story_157049.jsp|archive-url=https://web.archive.org/web/20170906035416/https://www.telegraphindia.com/1170616/jsp/jharkhand/story_157049.jsp|url-status=dead|archive-date=6 September 2017|website=telegraphindia.com|title=Mob missiles target trains on open line|accessdate=2017-09-05}}