Republic Day is the name of a holiday in several countries to commemorate the day when they became republics.

India gained its independence on 15 August 1947, after which the process of preparing a constitution was started. The Constitution was passed on 26 November 1949 in the Constituent Assembly. It was adopted on 26 January 1950 with a democratic government system, when the country became a republic in true sense. 26 January was selected, because it was this day in 1930 when the Declaration of Indian Independence was passed.

To mark this occasion, a grand parade is held near Rajpath in New Delhi, the capital of India, beginning from Raisina Hill near the Rashtrapati Bhavan (Presidential Palace), along the Rajpath, past India Gate and on to the historic Red Fort in the old quarter of the city. Different infantry, cavalry and mechanized regiments compose the Indian Army, the Indian Marines and the Indian Air Force's march in formation, who are decked in all their finery and official decorations.