He was elected as Member of the National Assembly of Pakistan in 1985, 1988, 1990, 1993 and 1997 General Elections. Despite being a stalwart of Pakistan Muslim League, Mr Sarwar accompanied Prime Minister Zulfikar Ali Bhutto for Simla Agreement in India in 1972 to ease the tensions between the two countries following the Indo-Pak war of 1971. On 24 December 1981, a Federal Council (Majlis-e-Shoora) was constituted by then President General Muhammad Zia-ul-Haq, Its members were nominated by the President. Khan served in the Federal Council from 1982–1984. In 1997, he was appointed as chairman Parliamentary Special Committee on Kashmir by then Prime Minister of Pakistan Muhammad Nawaz Sharif. He led Kashmir Committee composed of 26 MNA's from May 1997 to October 1999.
