Hello Amit,
You could also look out for junior executives from:
1. Training Centres: If you are looking for sales executives, try looking at centres offering sales training. I could think of NIS [National Institute of Sales].
2. Groups: Try in Yahoo groups specific to that skill like writers, testers, etc. There are also groups like Chetana Groups where you could find junior executives. Also, try sites like freshersworld.com.
Also, let me know if any other methods worked out for you.
Regards,
Soumya Shankar