This visa is granted for one month and can be extended for another five months for first and second degree relatives and in-laws (Father, Mother, Sister & Children) and can be extended for only two months in case of other relatives.

Requirements:
Fill up the form and submit personally by the sponsor
Requirements for applying visa for wife :
Copy of personal ID or passport of the resident husband
Letter from husband's employer citing profession and salary
Copy of attested marriage contract
Copy of wife's valid passport
For more information pls visit the link.
http://www.moi.gov.qa/site/english/departments/PassportDept/news/2011/01...