Hello Santosh, welcome to the forum. Nice of you to become a member of Android Tablets. To get started, I'd suggest you click this link to the Android Tablet Q&A section. Read the "Sticky:" threads at the beginning for some good general information about tablets and Android. Enjoy the forum!
BTW When you get a chance, please go to your profile and fill in the Tablet / Device entry. That way folks will know which tablet you have without you having to tell them every time.