His father was Khwaja Shahabuddin, a Pakistan government Minister, and his mother was Farhat Banu, a member of the Bengal Legislative Assembly.
[1] After returning from London Zakiuddin joined the Grindlays Bank in Bombay in 1943.
He worked in Grindlays Bank branches in Kolkata, Karachi, and Peshawar.
[1] She was a daughter of Khan Bahadur Hafizur Rahman Chowdhury and Abida Khatoon.
[4] Zakiuddin's brother, Khwaja Wasiuddin, was a Lieutenant General of Bangladesh Army.