Where are Indian Cleantech Startups?

Going by the global startup scenario, lately, cleantech & energy has been one of the biggest buzz around. Silicon Valley venture equity circles have realized that next wave of billion dollar companies would come from clean technologies & technologies that can contribute towards solving world energy problem.

I have not seen much talk around either energy or clean tech in Indian venture private equity circles or startup ecosystem in general.

Leave alone US Silicon Valley; Closer to home, consider these facts about China

1. Last year Chinese Clean-Tech firms received 220 million in Venture funding

2. Emission trading is expected to reach $100 billion a year. China receives about 60% of present carbon credits; it translates into $60 billion a year in climate-change aid. (Read my earlier write-up on how you can use Carbon Credits as source of capital)

Absence of Indian activity in energy and clean technology space puzzles me.

Am I missing any thing? What has been your experience that can explain lack of interest of Indian venture community in this mega opportunity?