there's a youtube channel named Mobeen Mughal, their workshop is Ashraf Auto Engineers on Jail Road Lahore, they post their denting painting mechanical repair videos on Youtube, you can watch the channel and contact them if you like their work.
or Autospot. pk also claim to do a very fine job in economical price. You can also visit their facebook page and visit them in person in Johar Town.
However, these are social media observations, i don't have any personal experience with them.
