Tamil Nadu State Transport Corporation [TNSTC] — refund for dropping at intermediate destination other than the booked destination

I booked (2 tickets) the setc bus from trichy to tirupati, andhra pradesh under pnr no.:t30988454 on 19/03/2020.
On reaching the bus stand, i was informed that bus was cancelled and your concerned authorities boarded us to another service bus upto vellore around 3:15 a. M where even no refund was given by neither the conductor nor the concerned authorities though we demanded and no other alternate measures was taken then. Since i had no other option and forced to take other bus to reach tirupati under these extreme times.
Hence i demand the authorities to refund the amount for which the inconvenience has been caused to us and compensate for mental agony.

Hope, the concerned authorities take necessary action on this else we will have to proceed legally.