Searching to know whether a particular component, module or board is available in India can be daunting. I made a google custom search engine (CSE) with all the main online embedded/electronics sites.
The URL for the search is
http://www.google.com/cse/publicurl?cx=001138685502448049082:odwaxexu1te
The current list of sites included in the search are
http://www.mgsuperlabs.co.in
http://www.ventor.co.in/
http://extremeelectronics.co.in
http://ventor.co.in
http://nex-robotics.com
http://sunrom.com
http://simplelabs.co.in
http://www.robokits.co.in
http://probots.co.in
http://onlinetps.com
http://embeddedmarket.com
http://tenettech.com
http://rhydolabz.com
http://bhashatech.com
Among these I have bought products from
http://www.ventor.co.in/
http://probots.co.in
http://rhydolabz.com
http://nex-robotics.com
and I was satisfied with the overall experience .