Muhammad Sarwar's father, Raja Muhammad Hayat Khan, had served in the Indian Army and was decorated with the British war medal for his services in the World War I– Muhammad Hayat retired as a Havildar Sergeant and passed away on 23 November 1932.[4] Muhammad Sarwar had three brothers and one sister.[2] Raja Muhammad Sarwar married in arrange in 1936 and had a son and a daughter from that marriage.[8]