Cancellaction charge is Rs.180 for ACC.
.
Cancellation charge per passenger on confirmed (reserved) tickets:-
(i). 48 hours before the scheduled departure of the train minimum cancellation charge
1st AC/executive class: Rs. 240
2...
more... AC/1st Class : Rs. 200
3AC/ACC/3A economy: Rs. 180
Second sleeper class : Rs. 120
Second class : Rs. 60
(ii). Between 48 hours and 12 hours before the scheduled
departure of the train @ 25% subject to minimum charge as per (i) above.