There is something like that underway currently and the guy who was arrested for tweeting was part of it - India Against Corruption(http://www.indiaagainstcorruption.org/). Like every common Indian, they have my support and money and when time comes I am willing to take it to the streets as well.
The litmus test will be, how much interest it can get from people beyond big cities.
Actually there was a time in the past two years, where a street revolution was inevitable. Especially last year and this year, both during Anna Hazare's fast.
But some how they couldn't hold on and fire died soon. Last year the fever was really high.
A radical change is not gonna happen with any fire or so that you mention. The path to achieve it is what Mr. Kejriwal is doing right now, and the time to get there will be the next decade or so. You think a street revolution is gonna help India right now, or a structured approach with a long-term vision..
The litmus test will be, how much interest it can get from people beyond big cities.