I don't think some of the rules "scale" that well in India... like the 100-attendee limit.
1. http://www.ted.com/pages/tedx_faq#A13
2. http://en.wikipedia.org/wiki/TED_(conference)#Controversies_...
"Sorry, we've sold out."
Want to allow thousands to attend? Go for it. Just don't call it TEDx. If you want to call it TEDx, you follow the TEDx rules.
To call yourself a TEDx event, and thus garner the international attention to your speakers through TED online talks and other avenues, the local event has to adhere to certain criteria. Some of the events in India are violating far more than the 100 person 'rule', like pushing highly discredited science. 'Extraordinary claims require extraordinary evidence' -- said evidence did not accompany the talks in question.