National Digital Library of India (NDLI)
(Available on https://ndl.iitkgp.ac.in/)
It is sponsored by National Mission on Education through ICT (NMEICT) under Ministry of Human Resource Development (MHRD). The objective of NDLI is bring a number of open (free) access resources at one platform along with some quality information resources from government institutions. You can find study materials from Primary School to PhD in different formats from different sources at one place. Minimize your search results using different filters and advanced search. You can browse as well as search the information (Click to know more).
Some Important Sources of Information are as below:
*CSIR *ICAR *ICMR *E-Shodhganga *NCERT *E-Gyankosh *NPTEL *OECD Library *South Asia Archive *World e-Book Library *PubMedCentral
It is open to all irrespective to affiliation to any institution. You have to register yourself for better experiences.
Please Click the link below and register yourself.
https://ndl.iitkgp.ac.in/account/registration
You will receive an activation link in your email, which has to be activated.
Some Other Important Links
1. Directory of Open Access Journals (DOAJ)
2. Directory of Open Access Books (DOAB)
3. E-Gyankosh
10. INFOPORT
11. Vidya-Mitra
12. National Library Catalogue
13. WorldCat
14. Project Muse
16.डाउन टू अर्थ
17. RefSeek