Career
On December 22, 1919 when the fifth government under the leadership of Prime Minister Nasib Yusifbeyli was formed, Mammadbayov was appointed the State Controller.
On December 22, 1919 when the fifth government under the leadership of Prime Minister Nasib Yusifbeyli was formed, Mammadbayov was appointed the State Controller.
In 1918, Mammadbayov was a member of Azerbaijani National Council which proclaimed independence of Azerbaijan Democratic Republic on May 28, 1918.