अरविंद गुप्ता: बेकार सामान से शिक्षा-उपयोगी खिलौने बनाना
In today’s world, when everyone is running after money, there are some people who are truly serving the society. Arvind Gupta is one of them who is making “Educational Toys from Trash” to make learning fun for children.
http://www.ted.com/talks/lang/hi/arvind_gupta_turning_trash_into_toys_for_learning.html