Im Not sure but i heared selling visa's here in qatar is Il-legal but i also heard from one of my Pakistani friend that Pakistani visa is about Qr 20000 and indian visa 16000 to 18000 Qr
But still hard to get these days. Batter for you to apply online in any company and came here on vist visa for interview and if they will find you right person for job then they will easily arrange working visa for you. Now these sort of things also depends on the companys policies.