Open source books for TNPSC Group 1 and Civil service(Download)


In this article, you will find some interesting books which will be useful for your exam preparation. I hope that you have downloaded the NCERT books already. If not, i would suggest you to download them in this link.

Download NIOS BOOKS:

NIOS books are useful to form strong foundation in each subject. If you found any broken link, please report.


2. Computing

3. Polity

4.Political science

5. Sociology

6. Indian culture

7. Science and Technology

8. Environmental studies

Note: All the links given above are links to download file in ZIP format. If any of the file ask you a for a password, enter examhacker as password.

I didn’t own copyrights for anyone of the following book.They are owned by OPENSTAX. I am just redistributing them under CC-3.0. Following books are reference book, hence refer through them to maximize your score in preliminary and main exam. Following books are in PDF format.

1.Physics reference book 

2. Principles of Economics

3. Concepts of Biology

4. Sociology Reference book

Updated books

5. Biology Reference book

6. Microeconomics book (Useful for economics optional paper)

7.Macroeconomics book(Useful for economics optional paper)

Above books are given to public domain by OPENSTAX college. You can donate for them in this link. More open books will be added soon.


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