Advance reservations can be made up to 120 days in advance, excluding the date of journey at the train originating station, according to IRCTC's website - irctc.co.in.
online ticket reservation
Ministry of Railways issued press release restricting ticket booked through online. No online booking from 10.00 to 10.30 hours. No Quick Book Option or e-vault option from 08:00 to 12:00 hours. Maximum 2 tickets for 2 hours. Read…
Railways has introduced new scheme VIKALP in which all the wait listed passengers who booked their tickets through internet will be allotted seats or berths in the alternate trains available
Railways will Refund confirmed tickets or RAC e-tickets in case of cancellation of trains. Commuters need not have to submit cancellation forms or file TDR.
IRCTC has offered the wait listed ticket holders the alternate way to continue their journey by means of flight.