Medical entry test in pakistan and difference between entry test of different provinces of pakistan?

i am very much trying to enter a government medical college.therefore i want to that if anyone here has given this test in nwfp or punjab or of agha khan medical college.plz plz tell me about that.i am sick of thinking of this test and there is no website avalible as per my search to provide me with an old paper of this entry test.and plz also if can tell me that what is the difference btw the entry tests of different provinces.and also about nust.is it a medical university and if yes then a government or a private.plz tell me as i hve very little knowlege about thest university.i am from federal board.