Tata Motors — regarding vehicle repair delay

Address:

Raigad, Maharashtra, 410210

Dear sir,
Myself alok pandey owing tata tiago xz model registration number mh 43 aw 2636. I met an accident and gave my car to fortune cars pvt ltd, nerul in navi mumbai for repair.
Its very sad to inform you that it has been more than 2 months my car is not repaired. Every time i call they give only one reason of non availability of spare parts. I have paid 90% advance payment to them.
I am really frustrated calling and making visits to workshop. The staff is not professional i guess they are making blunder. Even i explained very personal reason why i need the cars now urgently but they just dont care. If they cant not such technically sound to repair ask them to say clearly i can do it from any other workshop.
Please look in to this and help me to get the car immediately. Else i have no other left other than going for legal action.