Ahmadi
The 1973 constitution of Pakistan declares Ahmadiyya, a minor sub-sect in Islam founded in South Asia in the late 19th Century, "non-muslim". Ahmadi Muslims occupy high level positions in the bureaucracy and the military since the establishment of the country. Pakistan's Nobel prize winner in Physics, Abdus Salam also belonged to the Ahmadi sect.
Read more about this topic: Minorities In Pakistan