Indian Prime Minister Indira Gandhi traveled to Dhaka to sign the treaty with Bangladesh's first leader, Sheikh Mujibur Rahman, formalizing the close relationship forged when Indian forces helped Bangladesh win independence from Pakistan in December 1971. The pact covered mutual defense consultation, trade, and cultural exchange, anchoring Bangladesh's early foreign policy firmly toward India.
Less than four months after Pakistani forces surrendered in Dhaka, ending a brutal nine-month war that killed hundreds of thousands and sent ten million refugees fleeing into India, the two governments moved to formalize their alliance in writing. Indira Gandhi's decision to intervene militarily in December 1971 had been decisive in Bangladesh achieving independence, and the treaty was as much a statement of gratitude as of strategic alignment.
Sheikh Mujibur Rahman, recently released from Pakistani imprisonment and now leading the new nation, needed India's support to rebuild an economy and infrastructure devastated by war and cyclone. The treaty committed both nations to consult in the event either faced external aggression, a clause aimed squarely at Pakistan.
The relationship it enshrined would later fray over water-sharing disputes and border issues, and Mujib himself would be assassinated in a 1975 coup, but the treaty marked the formal beginning of Bangladesh's existence as a sovereign actor on the world stage, born from war and immediately anchored in a regional alliance.