Hassanally A. Rahman was born in the city of Karachi, Sindh (1909–1986), to a notable family. He acquired his barrister-at-law from the place of Middle Temple, England in the year 1934. He was 1 of the founding architects along with his younger brother Tufail Ali Abdul Rehman of the institution of Sindh Muslim Government Law College in the city of Karachi. He also served as the 1st principal of the college. Rahman was the vice chancellor of the famous institute Sindh University, Jamshoro, where he served twice in the similar capacity.
He was the well-known treasurer of the Pakistan Institute of International Affairs, Secretary General of All Pakistan Educational Society, and President and Board Member of Sindh Muslim Law College (S.M. Law College). In the year 1952, he led the delegation of Pakistan to UNESCO and in the year 1953, represented the state Pakistan at the Commonwealth University Conference.
Hassanally A. Rahman was the elder brother of Justice Tufail Ali Abdul Rehman, who hasbeen appointed as Attorney General of the state Pakistan and the Chief Justice of the provinces Sindh and Baluchistan High Courts. The famous Justice Tufail Ali Abdul Rehman was also the proposed presiding judge who sat on the Hamoodur Rahman commission after the 1971 civil battle between the Pakistan and Bangladesh.
The 2 brothers were the mere founding members of the institute Sindh Muslim Law College. Hassanally’s father Abdul Rahman was a barrister-at-law linked with the Queens Council.
Additionally, the late Hassanally A. Rahman was engaged in various other projects – from being active in the Pakistan Movement to serving as 1 of the founding members of the popular institute Karachi University.
Hassanally was succeeded by 5 daughters.