In January 1965, Hasan Ali Mansur became the fourth Iranian Prime Minister to be assassinated, also by a Fada'iyan-e Islam member.

Razmara began trimming the government payrolls, eliminating a large number of officials out of a total of 187,000 civil servants.

By so doing, Razmarra earned the wrath of the powerful land-owning and merchant families and most conservatives without gaining the confidence of the radical Tudeh Party.

Additionally, his opposition to the expropriation of AIOC assets at Abadan earned him the wrath of the small but powerful group of Majlis deputies known as the National Front.

The National Front was led by Majlis Member, Mohammed Mossadegh, whose leading ally in Parliament was the Assembly Speaker, Ayatollah Kashani.

The AIOC did, however, offer a few improvements: it guaranteed that its annual royalty payments would not drop below 4 million pounds; it would reduce the area where it would be allowed to drill; and it promised to train more Iranians for administrative jobs.

They wanted a stronger figure than Razmara's predecessor, Prime Minister Mansur, to ensure the success of the Supplemental Agreement.

Ayatollah Seyyed Abol-Ghasem Kashani, the leader of the country's mullahs, ended his support for the Fadayan-e Islam after the assassination.

[6] In 1954 Navab Safavi, founder of the Fadayan-e Islam, in a speech to the Muslim Brotherhood meeting in Egypt, declared that he himself had killed Razmara.

The Shah opted to go with former Prime Minister Sayyid Ziya al-Din Tabatabai but the Majlis, led by the National Front, voted Mohammed Mossadegh to the post.