Abay, why bother taking this car to a dealer. Even if it's only 1000 rupees, the time to take the car to a repairshop makes it worthless. This is pakistan, get used to bumps, and get used to fixing them yourself.
Because its a plastic bumper ou cant dent it back, but you can bend it back using some heat. A hair dryer will even do. Gently warm the bumper and pop the bump out.
I'm shocked you didnt think of it yourself. It would have taken less time than taking photos, posting them online and asking for help. It's a simple task, what's keeping you?
Someone from Lahore get to his house and fix this..ASAP!