Subscribe to: Punetech.com, pluggd.in, hackerstreet.in and look for jobs on http://sutrajobs.com and http://www.venturewoods.org/index.php/venturejobs/
This guy has given an excellent post on contributing to open source: http://shal.in/post/285909694/why-you-should-contribute-to-o...
P.S. Avoid being the 'polite Indian' described by jgrahamc by asking ppl to do ur work ( http://news.ycombinator.com/item?id=1886310 )
P.P.S: if you wish to get recruited for Infy, Cogni, Wipro you've come to the wrong forum