Hindi Diwas is celebrated on September 14 every year to honor the adoption of Hindi as one of the official languages of India. On this day in 1949, the Constituent Assembly of India decided to recognize Hindi, written in the Devanagari script, as an official language to promote unity and communication across the linguistically diverse nation. Hindi Diwas serves to celebrate the cultural and linguistic heritage of Hindi, promote its use in daily life, and foster national pride and unity. It also commemorates the contributions of important figures who advocated for Hindi's recognition. The day is marked by various programs, speeches, cultural events, and awards to promote Hindi language and literature in schools, colleges, and government institutions.