When General Yahya Khan's martial law was instituted on 25 March 1969, Rahman was appointed Martial Law Administrator (MLA), Zone A (West Pakistan), due to his position as Commander IV  Corps. In August 1969, Rahman was relieved by Tikka Khan and moved to I Corps at Mangla. Rahman stayed there until February 1970.
Following the establishment of martial law in West Pakistan on March 25, 1969, Rahman was appointed as Martial Law Administrator (MLA) for Zone A. He held this position due to his role as Commander IV Corps. In August 1969, he was transferred to I Corps at Mangla by Tikka Khan and remained there until February 1970.