Dear Oslec2011, Mrabdullah76,

Thanks alot for the excellent advice and guidanc. Finally I got the license today amazingly within 1/2 an hour.
I had approached at Old Airport Mrooor(Traffic Department) {upon my company driver's advice to try here first.}
And I succeeded in converting the Saudi Licence to Qatari one and also the Saudi licence is with me.

The Application form was filled by an agent for QR 10.
Got the Stamp on the photo and application form by the clerk inside at the Desks 'B'(Desks 'A' are for inquiries)
The Eye Test was conduct and was then sentback to the clerk at Desk 'B'again there she scrutinized my Saudi licence and then asked to pay 250 QR which I payed by e-card available at the same traffice department office.