"This is a massive compilation of Indian Muslim practices and commandments on them. It was compiled during Aurangzeb’s rule in late 17th century under two Sufi scholars – Sheikh Nizam Burhanpuri, and Shah Abdul Rahim with more than 450 scholars participating. Fatawa Alamgiri was the Mohammedan Law during British times, and largely retains that standing even today. It is compulsory education in madrasa teaching."
Fatawa 'Alamgiri

January 1, 1970