Motor Accident claims

In a collision between two motorcycles, both the riders were injured. My client was rushed to a hospital immediately as he was in a critical stage. The other rider filed a complaint before a police officer and the FIR has been registered against my client and subsequently the other rider has also now instituted a MCOP proceedings. The negligence was on the part of the other rider actually! My client has spent over RS.5,00,000/ for medical bills. Can my client file a MCOP case with the same FIR filed by the other rider? Whether my client has to implead my client's insurance company as a party to the claim petition? Whether the FIR against my client will have any adverse effect of my client?