Bangladesh has no geostrategic maneuverability citing it's Geography, from 3 sides it's circled by Bharat which controls everything they do in relam of foreign affairs and military.They are much like pre-47 princely states.In 1971 Hindus checkmated Muslims for long time to come.They encircled East Bengal and during same days did build a good amount of 5th column in Pakistan.
During times of united Pakistan,Bharat wasn't able to sleep due to being sandwiched between two Muslim Majority regions.
Those Gentlemen who tied East Bengal with Muslim majority regions of North British India and formed Union of East & West Pakistan after 1940 resolution were million times more brilliant and strategy masters than likes of Bhutto,Mujib and their lot combined.By forming two Muslim blocks they checkmated new rulers of Delhi before they even claimed a seat in Red Fort, then ethno/ lingo fascism was spread in East Pakistan and rest is history.
Bharati Hindus have personal vendetta towards Muslims,if you read history during their peak days after decline of Mughal Empire they walked into Tomb of Akbar in one instance and did took out his bones and did beat them,due to the fact that he married a Hindu Rajput woman.In those days they were dreaming of building a empire of their own on ruins of Mughal Empire for teaching Muslims a lesson and due to that reasons Abdali came and broke their back.
As of today,East Bengal is fully dependent upon goodwill of Bharat for everything and Pakistan continues fighting back imposed wars.In nutshell both Muslim majority regions of South Asia are in no good shape when it comes to security and geostrategy
And during this all Bharatis would sit and watch.