Whatever accident, you need to report to police and obtain the charge sheet on the spot. even minor/no traffic violation you need to do so. Without the charge sheet from police, you cannot repair the car and cannot claim any insurance for your car or third party car.

Btw, the police can be called from spot on 999.

*note: you must move the car off road if the accident is minor, otherwise you will penalised for creating the traffic jam.

I hope this helps.