Maharashtra State Road Transport Corporation [Msrtc] — uninformed delay in bus arrival

The departure time for the semi luxury bus (Shivajinagar to borivali) was 7am. But it left the depot at 8:20. This has caused extreme inconvenience to all the passengers. There was no prior informing. We had to wait at the stop 1 and a half hour without any clue of the time of arrival. Hope this is not repeated again as there were several senior citizens too who suffered.
Hoping for a reply.