Mezue ahịrịokwu na-esonụ: Bijoy Dibos () ma ọ bụ Vijay Diwas (, lit. Victory Day) na-eme ncheta ụbọchị iri na isii nke ọnwa Disemba kwa afọ na Bangladesh na India, iji cheta mmeri India meriri Pakistan na agha nke 1971 maka nnwere onwe.
nnwere onwe nke Bangladesh site na Pakistan. Ọgwụgwụ nke agha ahụ mekwara ka ndị agha Pakistan nyefee onwe ha kpamkpam na enweghị nkwekọrịta na nkewa nke East Pakistan na Bangladesh. N'ụbọchị a n'afọ 1971, onye isi ndị agha Pakistani, General Amir Abdullah Khan Niazi, ya na ndị agha 93,000, nyefere ndị agha jikọtara ọnụ gụnyere Mukti Bahini na ndị agha India, nke General Jagjit Singh Aurora, nke India na Ramna Race Course, ugbu a Suhrawardy Udyan, na Dhaka mgbe mmeri ha meriri n'agha. Praịm Mịnịsta India n'oge ahụ, Indira Gandhi, nyere nkwado ya zuru oke maka mgba mgbapụta nke (East Pakistan) Bangladesh nke nyeere ya aka ịghọ mba nweere onwe ya.