On which date we observe the Victory Day of Bangladesh ?

ব্যাখ্যাঃ Victory day (Bengali: বিজয় দিবস Bijôy Dibôs) is a national holiday in Bangladesh celebrated on December 16 to commemorate the victory of the allied forces over the Pakistani forces in the Bangladesh Liberation War in 1971. The Commanding officer of the Pakistani Forces General AAK Niazi surrendered with his forces to the Allied forces of India and Bangladesh, which marked the end of the 9 month - long Bangladesh Liberation War and 1971 Bangladesh genocide and official secession of East Pakistan into Bangladesh. This day and event is also commemorated across India as the Vijay Diwas (Hindi: विजय दिवस) to honor Indian and Bangladeshi martyrs who laid down their lives to liberate Bangladesh from Pakistan.