Career
He received his barrister-at-law from Middle Temple, England in 1934. He also served as the first principal of the college. Rahman was the vice chancellor of Sindh University, Jamshoro, where he served twice in the same capacity.
In 1952, he led the Pakistani delegation to United Nations Educational, Scientific and Cultural Organization and in 1953, represented the country at the Commonwealth University Conference.
Rahman was the older brother of Justice Tufail Ali Abdul Rehman, who served as Attorney General of Pakistan and the Chief Justice of Sindh and Balochistan High Courts. Justice Tufail Ali Abdul Rehman was also the presiding judge who sat on the Hamoodur Rahman commission post 1971 civil war between then West Pakistan (present-day Pakistan) and East Pakistan (present-day Bangladesh).
Hassanally"s father Abdul Rahman was a barrister-at-law affiliated with the Queens Council. Hassanally was succeeded by five daughters.