Haq was born on 6 September 1883 to a Bengali family of Muslim Munshis in the village of Bapta on Bhola Island off the coast of Backergunge District, Bengal Presidency.
[1] Haq initially trained as a lawyer, but freed himself from what was considered the shirki nature of the legal system.
Haq singlehandedly established 10 high schools and three senior madrasas on the island of Bhola.
Haq contested in the 1937 Bengal legislative elections,[3] winning in the Bhola North constituency.
He established the status of the mother tongue by speaking in Bengali instead of English in the Legislative Assembly.
His son, Mohammad Mokammel Haq, was a former secretary at the Ministry of Land and later the Executive Chairman of Board of Investment.