It was a petrol car and that's what we fueled. They sent us a bill which has charges for almost everything from battery change to gearbox change. The battery cannot die when we drove the car for less than one day after taking it ( we picked the cat at 230 pm and reported next morning at 10).
the issue is since it's a car breakdown, insurance might not cover it ( not an accident ) . Can provide more details on the charges.