Unfortunately, it is unlikely any of us here in the United States know a good rhinoplasty in Pakistan. Consult with rhinoplasty surgeons in your area, and find one that has natural results operating on noses like yours.
You can easily find the best doctor over there by yourself by doing the following:
Go to several consultation and look at as many before and after pictures as you can. If you felt comfortable with the doctor and of course duly qualified, see if you can find a few pictures that look like your nose before and the after result is good and you will be happy with. Then you will more likely have found a doctor that tackle your type of nose. Ethic rhinoplasty is the most complex type of...
Wow that's a tough question. If you fine one, please let us know. In the US a patient of Pakistan descent would be considered ethnic but I'm not certain that would be true the other way around.