1. You should have a salary of QR 4500-5000 for applying VISIT VISA for your wife/relative..(Though i've heard salary isn't a big issue while applying for VISIT VISA)
2. NOC from the sponsor(arabic)stating your position and salary(you shldn't hold a LABOURER category).
3. A proof of the the relationship such as marriage certificate/birth certificate attested by foreign affairs.
4. Labour contract,passport copies, ID copy of the sponsor..
5. Two photographs and passport copy of the visitor.
6. The charges are 200 QR/person for each month..
7. RP copy of the sponsor.
8. Rental agreement copy (They may not ask it for everytime but it act as a supportive document)