My car was rammed into on the express highway

Dear Sirs I was travelling in My car (Maruti Ritz) with my family, Wife and 2 Kids to Pune from Mumbai. In the afternoon around 2.45 PM while I was on the ghat section near Khandala the traffic was moving at a moderate speed when the car in front me applied brakes and I also stopped with sufficient distance between my car and the vehicle in front of me. In just a few seconds after my car had stopped a Mahindra Pick-up hit the rear of my car and the impact was so hard that my car bumped onto the Ertiga in front of me as the driver could not apply the brakes. My car suffered damages to the back and front as well. The bonnet, dicky, tail lights, AC condenser, and some of the internal structure of the car have been damaged and the expenses came about to be Rs. 55,180. The pick-up belonged to a resort in Machan Resort Lonavala and we immediately contacted the concerned person Mr. Ambekar and asked him to come to the site as we were close to the resort, but he didn’t come even after waiting for almost 2 hrs in rain and cold weather condition. We filed a FIR against the driver and the driver accepted his fault in the same and the punchnama was also done the next day, since it was late in the evening until the FIR procedure was done. They charged the driver under IPC Section 279 and there is no mention of the damage to property caused. The original papers of the vehicle were also not available with the driver and in this case also, the policemen didn’t confiscate the vehicle but instead only kept the driver’s license. The next also only xerox of vehicle documents without any company stamp were submitted and the police released the vehicle and also let the driver go as Mr. Ambekar was well connected to police and Politians. I have a 3rd party insurance on my car and the pick-up had a 1st party, both the insurances are valid and legal. Now in this case I have suffered a huge loss although its not my fault and the company that owns the pick-up is insisting that they will cover the losses only if it’s done through insurance, which due the nature of the insurance that we both have is not possible. But I had to bear a cost of Rs. 55,180. Me and my family, specially kids had to go through a lot of trauma due the accident and the delays caused in completing the procedures. Please advise on how can I compensate for the expenses from the company.