Only if the PNR is WL/RAC then only clerical charges are applicable Rs.60 (Rs.65 for AC class) per head but if its confirmed ticket cancellation charges are applicable based on timeline as applicable as per class. Check the rule below.
.
Cancellation charge per passenger on confirmed (reserved) tickets:-
(i). 48 hours before the scheduled departure of the train minimum cancellation charge
1st...
more... AC/executive class: Rs. 240
2 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.
(iii) between 12 hours and 4 hours before the scheduled departure of the train @ 50% subject to minimum charge
as per (i) above.
(iv) No refund after the above prescribed time limit.