Legal Advice in case party wants to file criminal case for accident.

I met with an accident about 2 weeks ago.I was riding a Bike and I was Planning To Overtake A Lorry And decided not as I was not able to see the road and was going go back but suddenly a 20-year-old boy came super fast and hit my bike to bike his and my bikes were damaged.But my leg is broken and he is minorly injured.And Now he is demanding compensation or he will file a case against me.His Bike is not in his name.I have a doubt does he have a driving license too.And something weird too happened that when we were in the hospital he called his friends and they came to the accident scene and stole petrol from my bike and was caught by the people and handed to police and was let go.My Bike is second-hand bullet and I changed RC to my name but didn't change the Insurance name in the time of the accident but now it is changed and now it is the third party.Please help me