Bijoy Bayanno, which translates to "Victory 31," is a grand celebration held in Bangladesh to mark the country's victory over Pakistan in 1971. The term "Bayanno" refers to the Bengali year 1358, which corresponds to the year 1971. On December 16, 1971, Bangladesh gained independence after a nine-month-long liberation war. The country commemorates this momentous occasion every year with great fervor and enthusiasm.