Hindi Day (Hindi: हिन्दी दिवस, romanized: hindī divas) is celebrated in some parts of India to commemorate the date 14 September 1949 on which a compromise was reached—during the drafting of the Constitution of India—on the languages that were to have official status in the Republic of India.

[1][2] The compromise, usually called the Munshi-Ayyangar formula, after drafting committee members K. M. Munshi and N. Gopalaswami Ayyangar, was voted by the Constituent Assembly of India after three years of debate between two opposing camps.

The Hindi protagonists wanted the Hindi language in the Devanagari script to be the sole "national language" of India; the delegates from South India preferred English to have a place in the Constitution.

[1][2] The compromise resolution became articles 343–351 of India's constitution, which came into effect on 26 January 1950.

"[1][2] Apart from local-level events in schools and other institutions, a few of the notable events include Ministry of Home Affairs in its order dated 25 March 2015 has changed name of two awards given annually on Hindi Divas.