Hyundai Motor India — Worst service

I gave my brand new elite i20 for the first service at talwar hyundai sanatnagar. There were small scratches on the front bumper of my car so i asked him what to do he said that u have to get it painted and the cost was 1800rps. I agreed to that and i asked the delivery of the car the same day but the agent said sir the service will be done today itself but i can't deliver u today as there is a little paint job to do. I agreed. The next day when i called the agent and asked whether the car is ready and the agent was wondering and he began questioning me when did u give the car.. I patiently said once check ur documents and then he checked and said oh yes sir u gave the car.
But the thing which shocked me was that he said the paint job is not yet over but the service is done. I got really angry and said do u have any sense of responsibility! He said sorry sir i can give u the vehicle today itself, i said take ur own time but i need the car perfect. He said yes it will be done.
The next day when i went to the service center the scratches on the front bumper were gone but when i checked out the rear a big scratch at the rear bumper was found.
When i asked that agent about this he said sir it might be present when u gave us. I really got angry and went into argument with him and i finally said i don't know what u will do but i want the scratch to be vanished, the agent said sir i will do touchups sir, i said it is not my fault u must paint that region and no touchups. He said no sir i cannot do that. I talked with the service manager and he asked argued with the agent regarding this. Then he agreed that he would paint that region and ht would deliver the vehicle tomorrow.

From now on i will never make a mistake to give my vehicle to them. This was a very worst experience.
Didn't expect it from talwar hyundai.