Thanks Guys... I completely understand the procedure now.
I understand the Business Visa! :)

I am also planning to move to qatar permanently on Job.
Since I will be on business visa I have plans to search for a good job simultanously. If I get one I will try and see if I can get the exit from the sponsor and be back on a new job/work visa.

If I have a work visa and my sponsor/first employer releases me then am I free to join any company anytime and still let the sponsorship be with the first employer only??
Thankyou Again...