Some of sites that in my opinion that may not be really popular but do count:
[E]rodov - www.erodov.com a close knit group of technology enthusiasts
Build India Movement - www.buildindiamovement.in a platform/meeting place for politically and socially active Indians. Its all about taking action and not just talking about it
MeriNews - www.merinews.com a website dedicated to citizen journalism in its true spirit ( I was about to include citizen journalism on Build India Movement but it just more logical to promote and participate with the common interest group)