http://hdl.handle.net/123456789/961 2026-04-05T13:09:59Z http://hdl.handle.net/123456789/962 NDLI Science Sponsored by Ministry of Education Government of India. Developed by IIT Kharagpur This contains lecture videos and notes of NPTEL/SWAYAM courses, online class lectures, some books and questions/solutions for undergraduate students across all science discipline. 2020-01-01T00:00:00Z