Hi Vikas, Yes, you can again make a booking for a railway retiring room on the same PNR after cancelling your previous booking. However, there are a few things to keep in mind: You will be charged a cancellation fee, which will depend on how far in advance you cancel your booking. If you are booking a retiring room for a later date on the same day, you will need to wait for at least 2 hours after cancelling your previous booking before making a new booking. If you are booking a retiring room for a different date, you can make a new booking immediately after cancelling your previous booking.