National Librarian's Day in India
National Librarian's Day in India is held on August 12. In remembrance of national professor of library science, Dr S R Ranganathan [1892-1972], who had spearheaded library development in India. This event in the second decade of the month August is annual. 
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The National Library of India on the Belvedere Estate in Alipore, is the largest library in India by volume and India's library of public record. The library with a collection of around 2.2 million books is designated to collect, disseminate and preserve the printed material produced in India.
Ranganathan, in full Shiyali Ramamrita Ranganathan, (born August 9, 1892, Shiyali, Madras, India—died September 27, 1972, Bangalore, Mysore), Indian librarian and educator who was considered the father of library science in India and whose contributions had worldwide influence. Harinath De (12 August 1877— 30 August 1911) was an Indian historian, scholar and a polyglot, who later became the first Indian librarian of the National Library of India (then Imperial Library) from 1907 to 1911.
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