India has asked Bangladesh for information to help hunt down two suspects in the 1975 massacre of Bangladesh's independence leader and 16 of his relatives and aides during a military coup.
Bangladesh last year executed five former army officers for assassinating Sheikh Mujibur Rahman, but several suspects convicted in absentia are still at large. Two are rumoured to be in India.
Home minister RK Singh on Monday assured visiting Bangladeshi counterpart Monzur Hossain that India pledges "all possible cooperation" in catching the suspects. The ministry says India has asked for details about the men's appearance and contacts that might help locate them.
Rahman was Bangladesh's first leader after its war for independence from Pakistan in 1971.