Videos are increasingly becoming an important source of information. You may please explore following links to find out some important videos, which are useful for students, researchers and faculty.
1. NPTEL Videos
2. Indian Institute of Technologies [IITs] and Indian Institute of Scinece [IISc] Video lectures
3. Academicearth: Provides access to Free academic video courses from leading universities of the world.
4. Ted: Ideas worth Spreading: Have access to videos containing riveting talks by remarkable people, free to the world. The shows talks related to technology, design, business, science etc. Some talks are also available in regional languages.