From 1962 to 1969, Ochirbat served as head of the Ideological Department of the MPRP Central Committee, of which he was a member fom 1966 to 1992. He studied at the Academy of Social Sciences of the Soviet Communist Party Central Committee, graduating with a higher degree in philosophy in 1972. He was elected chairman of the Central Council of the Mongolian Trade Unions (MTU) in October 1972. Ochirbat was also a MPRP deputy to the People's Great Khural from 1966 to 1983, and a member of its presidium from 1977 to 1982.[2] Ochirbat was ousted from the MTU in May 1982 by leader Yumjaagiin Tsedenbal, and then worked in the Ministry of Education and the Institute of Social Sciences. After Tsedenbal's fall, Ochirbat was made the acting deputy head of the Cadres Department of the MPRP Central Committee from 1985 to 1988. He was then the Mongolian representative on the editorial board of the communist journal Problems of Peace and Socialism, published in Prague.[2]
Following Jambyn Batmönkh's resignation in March 1990 amid protests for democracy, Ochirbat was elected general secretary of the party (in March and April 1991). After constitutional reforms, he became chairman from April 1990 to February 1991, when he was replaced by Büdragchaagiin Dash-Yondon. He was an MPRP deputy to the People's Great Khural for Ulaanbaatar 12 (1990–1992). From 1992, he was secretary of the MPRP Chairman's Council.[2]
Notes
^From 14 March 1990 to 13 April 1990, the title of the office was General Secretary.