Useful website Links including digital library

Online free library list

https://openlibrary.org

https://books.google.com/?hl=en

https://www.ibiblio.org

https://library.lums.edu.pk/free-e-books-library

https://books.google.com/?hl=en

https://www.wdl.org/en/

https://www.overdrive.com

https://epdf.pub

https://www.pdfdrive.com/tamil-books.html

http://connemarapubliclibrarychennai.com

http://epathshala.nic.in

http://www.tnscert.org

http://ncert.nic.in

https://ndl.iitkgp.ac.in

http://apscert.gov.in/ebookapp/ebook_page.jsp

http://www.scert.kerala.gov.in

http://library.bdu.ac.in

Tamil

https://www.tamiluniversity.ac.in/english/publications-2/books/

http://www.tamilvu.org

https://senthilvayal.com/e-books/

https://freetamilebooks.com

http://www.tamilpdfbooks.com

http://tamilfreepdfbooks.blogspot.com

http://www.annacentenarylibrary.org

Other important links

https://www.rsc.org/journals-books-databases/librarians-information/products-prices/ebooks/

https://chemistry.com.pk/free-download-chemistry-books/

https://archive.org/details/OrganicChemistryVol1

https://archive.org/details/OrganicChemistryVol2

https://ncerthelp.com/text.php?ques=NCERT+Chemistry+Books+class+11+and+12+download+pdf+Hindi+English+

www.cbse.gov.in

https://mhrd.gov.in

www.ciefl.ac.in

http://www.ncert.nic.in/sites/nts/talent.htm

www.niepaonline.org

www.ncte-in.org

educationsupport.nic.in