Himachal Road Transport Corporation [HRTC] — Dropped me at wrong stop

Address:

Kalol, bilaspur district, himachal pradesh

There is only one bus from Delhi to Marotan - Delhi Chandigarh Marotan, I had booked online ticket for the same. Bus had the same board over it while boarding from Delhi ISBT, but it droped me at Bilaspur stop, changed its board to Delhi Chandigarh Saidpur and started calling for people to saidpur route. When I asked him why he droped me mid way he firstly said - iss bus pur 2 route aaye hue hain, hamare paas saidpur ki bhi sawari hai...
But I kept asking the reason as it's un-usual, then he said hamari bus kharaab hai workshop jaaegi, isliye utaar diya. (NOTE - Agar bus kharaab thi toh board change kar ke saidpur ki sawari kyon bithayi? ) I am not okay with this scenario - jabbye bus Marotan jaati hai toh mujhe beech raaste kyon utara gaya samaan ke saath?