Hyundai Motor India — against service of car

Address: Gorakhpur, Uttar Pradesh, 273001

I had given my hyundai eon for paid service at gorakhpur hyundai service centre and paid almost 21000/

My car was running smooth and there was only noise problem.

They have replaced the silencer

When i took back my car it was not running smoothly..

It was draging...

I complained against it... And they said that this problem was prior to serving of car.

They are just ignoring the complaint and refusing to accept thier mistake