Kammala wannan jumlar: Banu ta shiga makarantar Farida Bidyatan a matsayin shugabar makarantar a shekarar 1964. Ta shiga bangaren Moscow na Jam'iyyar Awami ta Kasa a shekarar 1967. Bayan an kashe Dr. Mohammad Shamsuzzoha a Jami'ar Rajshahi, ta jagoranci zanga-zanga a Comilla a shekarar 1969. A lokacin da
Yaƙin 'Yanci na Bangladesh ta yi aiki a sansanonin' yan gudun hijira a Salt Lake City da Agartala. 'Yarta, Shirin Banu, ta yi yaƙi a yakin' yanci na Bangladesh da aka yi ado a matsayin mutum.