You're really asking too much here. What you need is training, and this site is not designed for that.
We are unpaid volunteers, and not in a position to dedicate hours of our time to the kind of low-level help you need. Assuming you're going to keep your job (and heaven help the multi-national company), I suggest you get one of the many good testing books out there.
Pawan, I'm sorry to say, if your concern has hired you as a new test engineer and given the responsibility of defining the complete process without any plans/strategy/specific expecations, you are all in a very very sorry state!
Anyway, you could get a lot of knowledge surfing through this site.
If you could coverge your requirement to a much specific one, you could get better responses.
- d r