Congratulations Vikas Srivastava for achieving the Gold level membership. This is just the result of your high contributions which crosses the 500 points reach and that made you a Gold level member. Now you can even add more friends to your profile and there are many such limits extending for you on Techulator. I hope you will keep contributing with the same pace so as to encourage other members also. I also recommend you to register for your infolinks account and then integrate it with Techulator. This will result a separate earning for you depending upon your contributions. More the contributions, more the earning! For a better step by step procedure to integrate you infolinks account on Techulator, you can create a separate Forum thread on it or you can also find a thread on it in the Forum section.
I find that the harder I work, the more luck I seem to have.