After months of internal tensions in East Pakistan ( current day Bangladesh ) leading up to the 1971 Bangladesh genocide , and a clampdown on Bengali nationalists , many independence fighters had organised themselves into a guerilla army . Called the Mukti Bahini , these rebels were aided by India in their struggle . After initial success over Pakistani troops there had been some relative calm in the region and further Indian assistance was sought to turn the tide . Economically burdened by close to 10 Million Bangladeshi refugees , India thus started to involve itself deeper into the conflict brewing in the east and stationed its troops near the border
1971 Bangladesh genocide
1971 Bangladesh genocide
Battle of Boyra