Every year Vijay Diwas is celebrated on December 16. The day is celebrated to mark the victory of Bangladesh over Pakistan. It is marked in India and Bangladesh. On December 16, 1971, the Chief of Pakistani forces Abdullah Khan Niazi surrendered along with 93,000 troops to the allied forces of Mukti Bahini and the Indian Army. Vijay Diwas is observed in Bangladesh as Bijoy Dibos.
The 1971 war resulted in the liberation of East Pakistan.
1971 war
It was a military confrontation between India and Pakistan. The war was first fought between East Pakistan (now Bangladesh) and Pakistan. India entered the war after Pakistan conducted premptive aerial strikes on eleven Indian air stations.
The war ended after Pakistan military signed the Instrument of Surrender with the Eastern command of the Indian Army.