Railways have decided to augment Train No. 16331 / 16332 Chhatrapati Shivaji Terminus - Thiruvananthpuram Weekly Express with two additional coaches i.e. one Sleeper class and one AC 3-tier on permanent basis. The details are as under-
16331 Express from Mumbai with effect from 20.2.2012.
16332 Express from Thiruvananthapuram with effect from 18.2.2012.