科布多省
Lagaan was born in 1887 in Buyant Sum, Khovd Province. He joined the MPRP in 1923 and two years later was appointed chairman of the Auditing Committee of the Committee of the MPRP for Khovd Province. In 1928 he was named chairman of the Central Auditing Commission of the national MPRP. In March 1930 he was elected a member of the Central Committee of the MPRP Presidium and on April 27, 1930 was named Chairman of the Presidium of the State Little Hural of the MPR, or titular Head of State of the Mongolian People's Republic, a position he would hold until June 2, 1932.