Ananthapuri Express

The 20635 / 20636 Ananthapuri Superfast Express is an superfast express train running between Kollam Junction and Chennai Egmore via Thiruvananthapuram Central, Tirunelveli Junction, Virudhunagar junction, Madurai Junction, Tiruchchirappalli Junction and Villupuram Junction through the trunk line and chord lines in southern India. It is a daily overnight Superfast Express service.

History
The inauguration of this train was on 30 June 2002 operating six days a week. Later in 2005 it was made daily train. In the beginning it ran between Chennai Egmore and Thiruvananthapuram Central. It was named Ananthapuri after the city Thiruvananthapuram. In 2017 railway budget, it was extended to Kollam with effect from 1 November 2017.

Coach composition
In total 23 coaches are there. It includes One AC First Class (H), AC 2 Tier (A), AC 3 Tier (B), Sleeper Class (SL), Unreserved general sitting coach (GS) and End on Generators (SLRD).

Incident
The engine of 16723 Express caught fire at Kollam Junction on 16 July 2018.