He joined
Islami Jamiat-e-Talaba in 1960 and became president of its
University of Karachi unit in 1962, Karachi chapter in 1963, and a member of its Central Executive Council. seat of the
National Assembly of Pakistan in 1977 and secured the highest vote tally in Pakistan. He was Assistant Secretary General of Jamaat-e-Islami Pakistan in 1992–93 and became Secretary General in 1993. He was elected
Emir or head of the party in 2009. In March 2014, Hasan became the first head in the history of JI to be voted out of office when
Siraj-ul-Haq Khan was elected head by the members with voting rights. == Academic career ==