He served as Chief Justice of the Supreme Court, the head of the Iranian judiciary, brought in during Amir-Abbas Hoveyda's tenure.

His father, Mirza Ghaffar Khan Yeganeh (more commonly known as Salar Mansour), was the Hakim (Governor) of Qazvin.

Yeganeh attended primary and secondary school in Qazvin before going to the University of Tehran where he received a Bachelor of Laws.

[2] He also served as the deputy prime minister in the cabinet led by Hassan Ali Mansur in the period between March 1964 and January 1965.

[3] Yeganeh fled to the United States following the Iranian revolution and on 15 November 1993 committed suicide on his boat in Washington, D.C.[4]