In case of PRS ticket
REFUND IN CASE OF FAILURE OF AIR-CONDITIONING EQUIPMENT :
When the air-conditioning has not worked for a portion of the journey, the ref und for such portion of the journey is granted at the destination of the train on production of a certificate of the conductor /guard , if the ticket is presented within twenty hours of the arrival of the train as follows:
In...
more... case of AC first class, the difference between the AC first class fare and first class mail fare.
In case of AC 2 tier sleeper/AC 3 tier sleeper class, the difference between the AC 2 tier/AC 3 tier fare and the sleeper class mail /express fare.
In case of AC chair car class the difference between the AC chair car class and second class mail/express fare.
In case of Executive class ticket of Shatabdi trains, the difference between the notified executive class fare for the concerned section and first class mail/express fare for the concerned distance of that section.