1) NOC (No objection certificate) from your company with salary >5000

2) marriage certificate copy

3) ID copy of urs (RP) - sponser

4) passport copy of ur wife

5) accomation contract (if it is with u, otherwise try without)

Fill up a form there.
+
bank card (200 QAR)
+

Carry all other things with you (optional only, but better if you take it. eg:- degree certificate copy, passport copy etc)

They will issue 1 month visa, after you can renew 5 more months. For renewal you have to take your wife for medical.