Don’t bother mate, it doesn’t matter though. You can do your research related Pakistan or even Malaysia, as long as your supervisor is happy to guide you. I had come across many theses at UK, which were related to wherever the students were originated from. What matters most are that , you go to the research website of the particular university that you are applying, and check out what are the required items to be covered on your proposal such as original contribution, how would your research change the perspective of the research matter, …etc.