Prasanna Travels — bus service - bus not checked before starting journey

Hi,
I am currently travelling from prasanna purple grand bus from amravati to pune at 7.30 pm. At the starting point itself the bus is being stopped by the driver due to some engine problem for around half to one hour. This will eventually increase the time of journey. Company should make it compulsory for buses to check in advance all the prior conditions before starting the journey which will not impact their customers.