14 September: Hindi Diwas

Hindi Diwas is celebrated every year to promote the Hindi language. In order to promote Hindi, it is advised to use Hindi in place of English in all government offices.
The Constituent Assembly of India accepted Hindi, written in Devanagari script, as the official language of India on September 14, 1949.
Officially, the first Hindi Day was celebrated on September 14, 1953.
The reason behind adopting Hindi as one of the official languages was to simplify administration in a nation with multiple languages. Efforts were made by several writers, poets and activists for the adoption of Hindi as the official language.
Rajbhasha Kirti Puraskar and Rajbhasha Gaurav Puraskar awards are also given to ministries, departments, public sector units (PSUs), nationalised banks and citizens on Hindi Diwas for their contribution and promotion of Hindi.