l like to give a sporty look to my car using stickers or paints. Its a maruti zen, whit color. Can anyone suggest a good shop which is also cost effective? If anyone of you had already done this, can you please tell me how much does it cost and who is the best in the city for doing this?

Go to the Automobile destination Pudupet. You will get many option to decorate your car.

There are lots of mechs and workshops around even if you want to fabricate some additonal parts to make your car look appealing. The cost depends on your interest. You can just stick my webgallery camera-friendly for just as low as Rs. 10 also you can fully stick your car with multi color reflexion stickers for few thousands too.