During the administration of Ayub Khan , Mannan was Secretary General of the Islamic Advisory Council and the Regional Council . Mannan was the Secretary General of the Regional Council and the Islamic Advisory Council during the administration of Ayub Khan .
Semasa pentadbiran Ayub Khan, Mannan merupakan Setiausaha Agung Majlis Penasihat Islam dan Majlis Wilayah. Mannan adalah Setiausaha Agung Majlis Wilayah dan Majlis Penasihat Islam semasa pentadbiran Ayub Khan.