E-Books - Free for Developing Countries -National Academies Press

The National Academies Press (NAP) was created by the National Academies to publish the reports issued by the National Academy of Sciences, the National Academy of Engineering, the Institute of Engineering and the National Research Council of United States.

NAP offers free access to all of its collections to the Developing Countries. India is also in the list. So, you can access around 3,000 books most are reports and special publications at free of cost. The complete book is downloadable as PDF. The e-books can be read online. Registration is required to download the books.