Hossain was a signatory to the Delhi Agreement between India, Pakistan and Bangladesh. The agreement sought to normalize relations in the subcontinent after the 1971 conflict. In the agreement, Pakistan pledged to release interned Bengali families in exchange for the return of PoWs held by India and Bangladesh. On dealing with neighboring India, Hossain has said "I had a great equation with Mrs Indira Gandhi and her foreign minister Swaran Singh. We discussed the knotty issue of land boundary with so much ease".