The Constituent Assembly of India accepted Hindi - an Indo-Aryan language written in Devanagri script, as the official language of India on September 14, 1949 under Article 343. Officially, the first Hindi day was celebrated on September 14, 1953. India celebrates Hindi Diwas to commemorate the adoption of Hindi as one of the official languages of the nation. One of the reasons behind celebrating this day is to prevent the increasing trend of the English language in the nation and the neglect of Hindi. Mahatma Gandhi called Hindi the language of masses. Many literary and cultural events are organised on this day across the nation and awards are also given to ministries, departments, public sector units, nationalised banks and citizens for their contribution and promotion of Hindi.

World Hindi day, different from Hindi Diwas, is celebrated on January 10th every year to mark the anniversary of the first World Hindi Conference with the aim to promote the use of Hindi worldwide. Hindi language is spoken by as many as 250 million people. As a linguistic variety, after English, Mandarin, and Spanish, Hindi is the fourth most spoken language in the world.

Hindi is also spoken in Mauritius, Fiji, Surinam, Guyana, Trinidad and Tobago, Nepal. English words including avatar, bungalow, guru, jungle, khaki, karma, loot, punch, yoga etc. are borrowed from Hindi. Many Indian large States like Uttar Pradesh, Bihar have adopted Hindi as their sole official language.

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