If you are planning to bring your wife to Qatar its mandatory to produce the following documents,
1. Marriage certificate
2. Copy of the passport of your wife
3. Copy of your Qatar ID card
4. No objection letter from your company stating your position and salary
5. Copy of your employment contract
6. Proof of lease agreement
The points 5 & 6 are not mandatory and will be needed to be produced depending upon the person who is handling your visa request. Now regarding your marriage certificate. The original marriage certificate should be attested by the embassy & then by MOFA. When appying for the visa you should have a copy of this attested certificate. Also you should carry the originals of all documents (except the passport of your wife) with you when you go to apply for the visa (as proof).
If you are planning to bring your wife to Qatar its mandatory to produce the following documents,
1. Marriage certificate
2. Copy of the passport of your wife
3. Copy of your Qatar ID card
4. No objection letter from your company stating your position and salary
5. Copy of your employment contract
6. Proof of lease agreement
The points 5 & 6 are not mandatory and will be needed to be produced depending upon the person who is handling your visa request. Now regarding your marriage certificate. The original marriage certificate should be attested by the embassy & then by MOFA. When appying for the visa you should have a copy of this attested certificate. Also you should carry the originals of all documents (except the passport of your wife) with you when you go to apply for the visa (as proof).