[1] [citation needed] Intisar-Ul-Haq served as the chairman and professor at the philosophy department of the University of Peshawar for over 3 decades.
Intisar-ul-Haque, former head of the department of Peshawar University, wrote several books and articles on Philosophy and Logic.
Dr. Intisar was the member of the curriculum committee of the UGC where he influenced the development of curricula in area of logic and philosophy.
He was responsible for establishing teaching of analytical philosophy and logic in the country through Pakistan Philosophical Congress of which he was the serving Vice President at the time of his death.
[citation needed] Intisar-ul-Haque represented Pakistan at an international conference in Thailand of UNESCO.