Analysis of information sources in references of the Wikipedia article "Mukti Bahini" in English language version.
Although India portrayed itself at that time as neutral, the Indian government in fact nurtured the Bangladeshi Mukti Bahini (liberation army) guerrillas and the Awami League. India supplied them with arms, ammunition, and logistical support, and permitted them to recruit and train volunteers, most of the refugees, on Indian soil.
There were also several irregular forces ...; Latif Mirza Bahini of Sirajganj; Hemayat Bahini of Faridpur; Gafur Bahini of Barisal; and Aftab Bahini of Mymensingh. Taken together, these forces constituted the Mukti Fauj under the overall command of Colonel Osmani. They were later renamed 'Mukti Bahini'.