Hi, Nareshvemula! Welcome to Wikipedia. I hope you like the place, and decide to stay. We are counting on your help to improve Wikipedia! These links might help you in learning and finding your way around Wikipedia during the first few days. If you have any questions, please feel free to ask me on my talk page or place {{helpme}} on your talk page and ask your question there, and someone should come along soon and deal with your problem.
If you would like to be adopted by an experienced user, it'll help you to get familiar with Wikipedia and the "do"s and "don't"s pretty quickly. Also consider joining a Wikiproject on a subject that you are interested in and collaborate with other users to create and improve articles. Finally, remeber to include an edit summary for all your edits, and don't forget to sign your comments on talk pages by typing four tildes (~~~~).