50th anniversary of Vijay Diwas observed across Northeastern states Vijay Diwas, which marks the Indian military's victory over Pakistan in the 1971 Indo-Pak war and the creation of Bangladesh, was observed across the northeastern states on Wednesday. | 17 Dec 2020 5:30 AM GMT GUWAHATI/AGARTALA/ ITANAGAR: Vijay Diwas, which marks the Indian military's victory over Pakistan in the 1971 Indo-Pak war and the creation of Bangladesh, was observed across the northeastern states on Wednesday. To mark the 50th anniversary of the Bangladesh Liberation War victory, the Border Security Force (BSF) organised a wreath laying ceremony at the Liberation War Memorial at the Bharat-Bangladesh Maitri Uddyan Park, Chottakhola, in south Tripura.