If for CNF tickets they should be cancelled before 48 hrs of Scheduled Departure of the train,then only Cancellation charges shall be applicable.
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3.2 Unused tickets on which reservation has been made:
(i) if the ticket is presented for cancellation more than forty eight hours instead of the existing 24 hours in advance of the scheduled departure of the train, a minimum...
more... per passenger cancellation charge shall be deducted at the flat rate of rupees one hundred and twenty for air-conditioned first class/executive class, rupees one hundred for air-conditioned-II tier/first class, rupees ninety for air-conditioned III-tier/ 3 economy/air-conditioned chair car, rupees sixty for sleeper class and rupees thirty for second class.