Hello guys, I'm from India too.
How much can be made out of these signature campaigns?
Any idea anyone?
It depends on your rank and payment per post decided by the campaigner. Price per post varies greatly per campaign. It is fairly easy to calculate how much a member can earn via signature campaigns.
All you need to do is check the upper limits of post allowed per day or maximum posts allowed per week and multiply that will payment per post applicable to your rank.
It is important to understand rules of signature campaigns. They require quality posts and due to previous experience of spam creation with signature campaign, creative and constructive posts are expected. One lines are not allowed/considered. Users with negative trust are not allowed. Any user not following the guidelines might get removed from campaign without any notice.
Check the services section for more and more offers. Again check the rules/guidelines very carefully.
PS: It is interesting that you signature shows that you might be already part of one of these campaigns.