e-Books

1. World e-book Library
http://community.worldlibrary.in/

2. DISCOVER Magazine
http://discovermagazine.com/

3. Economic & Political Weekly
https://www.epw.in/

4. 84,032,682 e-Books download for free
Some Free e-books

5. Public Resources collection Archives from Public Library of India
https://archive.org/details/digitallibraryindia

6.The Universal Digital Library
http://ulib.isri.cmu.edu/

7. About Telugu Women Poets
http://teluguwomenpoets.com/

8. 100 Telugu Novels Archives

9. Google Books

10. Directory of Open Access Books (DOAB)
Browse Subject wise e-Books

11. Gutenburg free e-books 
http://www.gutenberg.org/

12. e-books and texts
https://archive.org/details/texts

13. Rare Book Society of India
https://www.rarebooksocietyofindia.org/

14. The Universal Digital Library (Million Book Collection) 

15. Free E-Books
http://14.139.121.106/OKGW/E-Books.htm

16. http://www.openculture.com/free_textbooks

17. Free Political Science Books 

18. Google Books 

19. Authorama Public Domain e-Books

20. https://www.free-ebooks.net/

21. PDF BOOKSWORLD/ALL SUBJECTS

22.  PDF DRIVE (https://www.pdfdrive.com/)

23. American Mathematical Society : Mathematical Books