Mahindra First Choice [MFCWL] — carelessness and local parts used in service

Address:

158/4, Shree Mukhiya Market, Main road Taj Highway, Noida Extension, Near Gaur City, Noida (U.P) - 201305, Gautam Buddh Nagar, Uttar Pradesh, 201305

I am Danish Ahmed S/O Anwar Ahmed R/O 41, Purva abdul wali shahpeer gate, Meerut (U.P) - 250002. I owns a car Tata - Tiago Revotorq XT registration no - UP15-CB-2744.
My car got accident on 18th Dec'18 around 5.00 PM in Bulandshahr (U.P) - 203001. So I called insurance company for help and they provided me details of near by service center Cena Tag Automotive (158/4, Shree Mukhiya Market, Main road Taj Highway, Noida Extension, Near Gaur City, Noida (U.P[protected]. Cena Tag Automotive is collaborated with Mahindra First Choice and authorized to repair any car. I talked to the person and toed my car and submitted my car on 19th Dec'19 around 3.00 AM at above service center and they received it.
I got my car from same service center after repair on 3rd Jun'19 after so many follow ups. I spent a lot money on hired vehicles. So it gave me a lot mental and financial problem. They harassed me a lot in this period and Finally I got my car after repair.
But now my car is not running fine, some parts was missing, Some broken, lots of sound in engine.
I talked to the service center executive Mr. Rakesh Kumar ([protected]) and he said that It will work fine after some time as it was not in running condition for last 165 days.
But when issues increased I checked my car on a Tata Motors authorized service center on 17th Jun'19 and they told me that my car engine is not working fine and wherever I have repaired my car they have used local parts or not checked it properly before handing it to me and because of their carelessness some of engine parts damaged.
Parts Damaged -
1. Injector 3 - due to dust or carelessness of service center
2. Engine Mounting 'A' - Broken
3. Steering Rack - not serviced properly
4. Turbo Pipe - leaked (not changed at the time or repair)
5. Coolant Bottle - Damaged & Leaked (not changed at the time of repair)
6. Alternator Belt - Used local
7. Auto Testers - Not done
Above all issues due to carelessness of Cena Tag Automotive or they have saved money from insurance amount and done temporary work and It is costing me around 67000/- rupees for parts only and service charges will be extra to fix above issues.
If I will not have checked it soon It will also damaged turbo of car.

It happened because of carelessness and fraudulent of Mahindra First Choice & Cena Tag Automotive. I want both to bear the cost to repair my car and compensate me for mental and financial harassment done by them for 165 days. Because if they have done work correctly than It will all be covered in Insurance and I will have to pay less but now all cost on me.
I have also mailed to mahindra first choice when my car was more than 4 months in service center and one person called me and said that they will escalate the issue but no one called and replied on mail again.
I have twitted on twitter directly to Mr. Anand Mahindra after I received my car and lots of issues found in my car again someone called me and said they will escalate but again no call back.

Finally I am asking for law and order to help me out because they Mahindra First Choice and Cena Tag Automotive has given me a lot depression.