South Bengal State Transport Corporation [SBSTC] — Sbstc AC Bus broke down

I took sbstc bus from bankura at 3:15. When bus reached near panagarh, it's wind shield broke down suddenly with out any accedent bus was stopped. But SBSTC had no responsibility to adjust the passengers to other bus though it's a long route bus going to kolkata( korunamayee). They gave a false belief and made us stand by the side of road for 1:30 hrs still no bus came to take us. Lastly I booked another private bus with my own responsibility. I missed my flight ( kolkata to delhi). It was very disappointing. I want refund the cost as I want a compensation for my missed flight.