He wrote books on Islam in Arabic, Urdu, Persian, and announced judgments on several thousand Islamic problems in his compilation of
fatawa Fatawa-e-Mustafwia. Thousands of Islamic scholars were counted as his spiritual successors. He was the main leader of the
Jama'at Raza-e-Mustafa in Bareilly, which opposed the
Shuddhi movement to convert Muslims to Hinduism in pre-Partition India. It would also act as a quasi-political organisation in opposition to the Deobandi-dominated
Jamiat Ulama-e-Hind. Khan participated in one of the
All India Sunni Conference meeting. Khan was known by his followers as
Tajdar-e-Ahle Sunnat,
Mufti-e-Azam and
Mustafavi Miyan. In such circumstances Mustafa Raza Khan argued this order of Indian government given by
Indira Gandhi. ==Works==