S.No Publisher Subject Area Web Sites
1 DELNET (Developing Library Network) Civil, Computer Science and Engineering, Electrical and Electronics Engineering, Mechanical Engineering http://delnet.nic.in/


NDL (National Digital Library) Books  - More than 7 Lakh Books by 3 Lakh authors in  70 Languages.  


3 NDL (National Digital Library Articles  - More than 3 Lakh articles by more than 2 Lakh authors from different publishers. https://ndl.iitkgp.ac.in/
4 NDL (National Digital Library Thesis  - More than 95,000+ Thesis by researchers from different Indian                Institutes. https://ndl.iitkgp.ac.in/
5 NDL (National Digital Library Audio Lectures - More than 262 audio lectures in English and Tamil. https://ndl.iitkgp.ac.in/
6 NDL (National Digital Library Video Lectures - More than 18, 000+ Video Lectures from 11 sources. https://ndl.iitkgp.ac.in/