He hails from a well known judicial family of Kasur in Punjab. His grandfather Khan Bahadur Moula Baksh retired as a District and sessions judge. The late Khan Bahadur had an impressive collection of law books that he donated to various institutions in Lahore that are in use even today. His father Mr. S.M. Mir BA Cantab Bar-at-Law also served as District and Sessions Judge and later was appointed as Prime Minister in the princely state of Tonk. The Late S.M. Mir introduced important reforms in the state and helped under privileged students to avail higher studies by providing state scholarships.
