Quoting from the site
“NalandaU is a free virtual university with the largest collection of educational videos (6000 hours) in over 300 topics ranging from Quantum mechanics to iPhone programming to business law to running your startup. We are also rolling out a educational platform to connect students and educators where students could get personalized tutoring services for specific lectures they are interested in.”
Check it out and enrich yourself at no cost.
The nice things in this world are free.