Mahindra Cars — car vehicle poor service

Address: Main Bazaar, Guntur, Andhra Pradesh, 522503

I am using mahindra tuv 3oo t8 mhawk100 vehicle. I give my vehicle for service against gears not working properly on 13/nov/2019. They said the quotation for repair is about 50000. I agreed for that and i said to service the vehicle. They put my vehicle for nearly 40 days and they make a bill of 90000 rupees. I checked my vehicle and i told them the complaint was not rectified properly. I again send my vehicle to service center to check the complaint. But they went for a test ride and saying that the vehicle is working properly. But my vehicle is not working properly.