Hindi Diwas is celebrated annually on September 14 to mark the day in 1949 when the Constituent Assembly of India adopted Hindi, written in the Devanagari script, as one of the official languages of the Republic of India. The day honors the importance of the Hindi language as a unifying medium of communication in a linguistically diverse country and celebrates its cultural and literary heritage. It promotes the use of Hindi in daily life, fostering national pride and unity, and encourages younger generations to preserve and develop the language through literature, education, and media. Hindi Diwas also recognizes the contribution of Hindi to Indian identity and national integration. The day is observed with various cultural programs, literary events, competitions, and awards to honor those who have contributed to the promotion of Hindi.