Aruna,
Keep an eye on the following link
Android Study Guide for Pro Android 3: How can I learn Android Quckly?
I will post an article and resources that aim to answer the following in an actionable form
3 years ago we were beginers too. How did we learn Android?
I am a beginer will this book help me to learn Android?
I am a beginer how can I use this book to learn Android?
what are my strategies to learn Android the quickest?
what are my prerequisites to learn Android?
what do I need to know first and what can I learn next on a real project?
what do I need to know to get a job in Android space?
Where can I get help and advice?
Thanks again
Satya