Mahindra And Mahindra — Service related complaint about your service center patwa automobiles, indore

Address:

Indore, Madhya Pradesh, 452001

I, Achal Yadav, Indore, [protected], purchased a Mahindra Logan car No. MP09-CC-3009, it ran for not even 10000 km and there was some problem in engine, I contacted the local service center Patwa Automibles they said that problem is in engine and gave an estimate of approx. 18000/- took advance 10000/- but even after 5 months the car was not completely OK they called me 2-3 times but some or other problem remained, afterwards the service center called me and said the estimate has risen to 45000/-, but they couldn't gave me any justified reason for such increase. I felt cheated as neither the parts of car are available in local market and nor any mechanic takes care of this model.
I had no option but to accept the service center's estimate I gave the consent but now after 2 months also the car is not complete and the estimate is risen to 52000/- .
I even offered the vendor to exchange the car but the service people said that it is a fail model and there our no takes for this...please recommend me what to do...