Malgudi Express: From the pages of RK Narayan to the railway tracks of Mysore. - Vageesh

Your question is bit confusing....What is there for you to refuse to travel as WL tickets after chart preparation are not eligible for travelling?
But as i know a PRS ticket can be produced at counter for cancellation and in this regard IR reservation rule states like this:
UNUSED WAIT LISTED OR RAC TICKETS :
(1A) Subject to provisions of subrule (2), no cancellation...
more...

charges shall be payable if a wait-listed or RAC ticket is presented for cancellation up to :
(i) Three hours, when the ticket is for a destination station up to 200 KM.
(ii) Six hours, when the ticket is for a destination station of more than 200 KM but up to 500 KM., and
(iii) Twelve hours , when the ticket is for a destination station of more than 500 KM.,
after the actual departure of the train except for a deduction of a clerkage charge of Rs. 20/- per passenger.
Provided that for night train leaving between 21:00 hours and 06:00 hours (actual departures), refunds shall be admissible at the station within the time limit specified above or within four hours of opening of the reservation office, whichever is later.
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