The cabinet led by Prime Minister Hassan Ali Mansur was inaugurated on 7 March 1964. It replaced the second government of Asadollah Alam. Mansur's cabinet was the first of party-governments in Iran. It was led by the Iran Novin Party and was approved by the Majlis on 8 March. It enjoyed nearly full confirmation at the Majlis, including the members of the opposition party, People's Party.
The cabinet's term ended in January 1965 when Hassan Ali Mansur was assassinated. Next cabinet was formed by Amir Abbas Hoveyda.
The cabinet was consisted of the following twenty-two members. Some members served in the previous cabinet led by Asadollah Alam, and most of them were part of the Iran Novin Party.
Four new ministries introduced through the establishment of the cabinet. One of them was the Ministry of Information which had replaced the Department of Publications and Broadcasting.
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