Plus NUST-PNEC have Hostels so you will not have to stay outside.
When you will go to karachi , you will see things by yourself , I hope you will feel no fear over there.
That is perhaps the main problem. They have limited hostel accomodation. Hostels are not offered at least for the first year out of four years of BE Program. i.e I will have to live in some private self-arranged accomodation outside the NUST Campus.
In reply to GS Member Iconoclast, I would like to say that I have no relatives at all in Karachi. There is no-one whom I know there except a few family friends. how it becomes risky. Kindly elaborate.