In a tweet on Friday, IRCTC (Indian Railway Catering and Tourism Corporation) said that if a train is cancelled from its start to end location, the PNR (Passenger Name Record) is cancelled by default. Following the cancellation of PNR, the travel fare will be completely reimbursed automatically to the passengers.
The reimbursement amount will be credited to the bank account used to make the payment while booking the ticket.
In case Train is fully cancelled from Start station to end station, PNR will be automatically cancelled. Refunds will be processed in the same account through which payment was made. For more, please log on to https://t.co/s3mX8V8YUd pic.twitter.com/UXRawh2nMD— IRCTC (@IRCTCofficial) 4 May 2018
This facility is already available on tickets cancelled voluntarily, where the total fare minus the cancellation fee is credited to the bank account used to make the payment while booking the ticket.
For counter ticket cancellation, irctc.co.in says "Cancellation of tickets and refund of fare may be permitted for PRS (Passenger Reservation System) counter tickets in normal circumstances only and not in case of late running of trains/cancellation of train etc."