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It is our national language because it is spoken in a large area.It is declared at Gandhi's period, because northern side are most used language is hindi,whereas in southern part there are many languages, so hindi is declared as the national language of India.and Gandhiji took steps to improve hindi in southern part,for that he started hindi exams,,now it is held by Dakshin Bharat Hindi Prachar Sabha.
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hey thank you very much........ well if you can then can you plz elaborate cause this for my project
i coulnt get u