The Ministry of Human Resource Development, Government of India in coordination with the Indian Institute of Technology Kharagpur has started a new National Digital Library (NDL) that has more than 7 million books available on a single portal from primary to post-graduate level.
The portal integrates books from different Indian Institutional Repositories and hosts contents from multiple subject domains like Religion, Philosophy, Technology, Science, Humanities, Agriculture and others in more than 70 languages.
On the new National Digital Library you can read books online or also download them in your computer for free. The thing you have to do is to register for free HERE
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