<page_title> List of Chief Ministers of Bihar </page_title> <section_title> Chief Ministers of Bihar </section_title> <table> <cell> 22 December 1970 <col_header> Term </col_header> </cell> <cell> 2 June 1971 <col_header> Term </col_header> </cell> <cell> Socialist Party <col_header> Party </col_header> </cell> <cell> 24 June 1977 <col_header> Term </col_header> </cell> <cell> 21 April 1979 <col_header> Term </col_header> </cell> <cell> Janata Party <col_header> Party </col_header> </cell> </table>
Karpoori Thakur served as the Chief Minister of Bihar from December 1970 to June 1971 as a member of the Socialist Party, and from 1977 to April 1979 as a Janata Party member.