As Jajoo mentioned, you got approval from Labour Dept for 5 years (Usually Labour Dept is giving 5 years approval and require to renew every 5 yrs. i.e. elligibility to work in Qatar) and Immigration Dept issues Visa for 1yr (which you call Employment Visa) which is renewable for another next 4 years.
As Jajoo mentioned, you got approval from Labour Dept for 5 years (Usually Labour Dept is giving 5 years approval and require to renew every 5 yrs. i.e. elligibility to work in Qatar) and Immigration Dept issues Visa for 1yr (which you call Employment Visa) which is renewable for another next 4 years.
I hope it will clear your doubt.