Kamayani Express - Late आना है काम तुम्हारा लेकिन मैं फिर भी हूँ तुम्हारा दीवाना - Aman

The date of journey on Confirmed/RAC/waitlisted tickets can
be preponed or postponed in the same/higher class or for
the same destination on payment of prescribed charges. This
facility can be availed only once, irrespective of whether the
accommodation...
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available is reserved or RAC or Waitlisted.
If you want to prepone or postpone the date of your journey,
you should surrender your tickets during working hours of
reservation office atleast forty eight hours before the scheduled
departure of the train in which originally booked.