Only during 1953-1955 while serving as deputy prime minister in the cabinet of Ali-Arifin (Cabinet Ali Sastroamijoyo I) Zainul involved in the executive body.
Hanya selama 1953-1955 ketika menjabat sebagai wakil perdana menteri dalam kabinet Ali-Arifin (Kabinet Ali Sastroamijoyo I) Zainul terlibat dalam badan eksekutif.