Literate at an early age, he first worked as a scribe in his district and provincial assemblies, and then at the ministry of finance during the Bogd Khaanate.

In advance of the revolution, Dogsom and Bodoo returned to Khüree, where they worked to enlarge the party's membership and form an army.

In February–March 1936, Dogsom was elected to the Presidium (or Politburo) of the MPRP Central Committee and concurrently as Chairman of the Little Khural, making him titular head of state.

Dogsom's enemies, particularly Choibalsan, used the event to connect him to the fictitious spy ring and accuse him of being in league with Japanese imperialists.

[4] In July 1939 as the Stalinist repressions in Mongolia drew to a close, Choibalsan arranged the arrest of Dogsom and Darizavyn Losol on charges of counterrevolution.