Mir Bashir Fattah oghlu Gasimov was born in Dashbolagh, Persia (present-day Ardabil Province, Iran) in 1879 to a poor family of peasants.

After the fall of the Soviet-oriented Baku Commune in Azerbaijan, Gasimov engaged in underground political activity.

[1] One day after the establishment of the Soviet rule in Azerbaijan, Gasimov was already a member of the Revolutionary Committee of Baku.

He soon advanced in his career in the Communist Party and was appointed the Deputy Chair of the Central Executive Committee of the republic, serving in that position in 1921–1924 and in 1931–1935.

[4] Today Gasimov is still seen as a significant political figure by members of the Azerbaijan Communist Party and other left-wing politicians.