Telangana State Road Transport Corporation [TSRTC] — 7273- 10th march 19. bus late more than 1 hour 30 min

Service number 7273. Expected time to arrive jbs @12:45am. Now it's already 1 hour late and when i called to driver he said bus is still at mgbs. That means it is going to come after 40 min, total around 2 hours late. Who is responsible for this. What is the use of booking online? How disgusting it is. We have urgent works. Tsrtc ruined it with late.