Welcome to WebmasterWorld Guest from 188.8.131.52
Could you suggest from where and how should i proceed.
You've landed in a pretty good place here at WebmasterWorld, to start with. The more time you spend here, the more info you'll pick up.
That said, I'd be remiss if I didn't at least mention the free and useful resources available on the AdWords site itself. There is a lot of really excellent information to be found on forums, blogs, books and so forth - but there is also something to be said for the information which is written by the same folks who designed the AdWords system, and which is updated quickly as the AdWords system evolves.
Two places to explore:
The (searchable) AdWord Help Center:
The AdWords Learning Center, where you will find both text and multimedia lessons on a very wide variety of topics: