The following databases, repositories, search engines are very useful for teachers and students of all disciplines-

• N-LIST (National Library & Information Services Infrastructure for Scholarly Content)
• Shodhganga : a reservoir of Indian theses & INFLIBNET
• National Digital Library : Repository hosts contents from multiple subject domains like Technology, Science, Humanities, Agriculture and others.
• e-PG Pathshala : High quality, curriculum-based,interactive content in different subjects across all disciplines of social sciences, arts, fine arts & humanities, natural & mathematical sciences, linguistics and languages is being developed by UGC.
• SWAYAM : National MOOCs Portal developed by MHRD, Govt. of India
• NPTEL : National Programme on technology Enhanced Learning. It provides E-learning through online web and video courses in Engineering, Science and Humanities streams.
• NOPR : NISCAIR Online Periodical's Repository
• DOAJ : Directory of Open Access Journals
• मराठी विश्वकोश : The Marathi Encyclopedia (or Marathi Vishwakosh) is an online free encyclopedia in Marathi Language, funded by the Government of Maharashtra,India.
• Rare Book Society of India : The Rare Book Society of India is the first of its kind - it is a virtual space for rare book collectors and history buffs to read, discuss, rediscover and download lost books. Provides Open Access.
• OALIB : Open Access Library. It provides free Access to 42,26,570 Academic Articles
• Project Gutenberg : Offers over 53,000 free e-books
• Google Scholar : Provides a search of Scholarly Literature
• Internet Archive : It is a non-profit library of millions of free books, movies, software, music, websites, and more.