The cost of railway retiring room varies depending on the station, the type of room, and the duration of the stay. IRCTC Service Charge of Rs.20/- upto 24hrs for a Retiring Room and Rs.10/- upto 24hrs for a Dormitory Bed and of Rs.40/- from 24hrs to 48hrs for a Retiring Room and Rs.20/- from 24hrs to 48 hrs for a Dormitory Bed is also applicable. The exact cost can be checked on the IRCTC website or by contacting the railway station directly.