Its always a challenge to find all the relevant job sites in the Internet, but here you are, with all the relevant sites together.
Some of them require you to post your resume, but they really provide good results.
Job Related Sites
Freshersworld
Monster
Naukri
Timesjobs
2myjobs
4jobseeker
Jobstreet
Jobsahead
India Study Channel
Best Job Sites
Tech Interviews
Yuva Jobs
India Hot Jobs
Bixee
Fresh Job Openings
Wikiagain!
Company Profiles
All Companies in India(from Freshersworld)
Companies in India(from Monster.com)
If you know more sites feel free to provide feedback by clicking here.