Hi, just an addition to that information, Visa will be given for 1 year in most of the cases. But, if any of the applicant or dependents passport's expiry date is less than 1 year, then Visa will be issued till that time for every applicant.
For eg: All the family members underwent their medical tests , on 4th April 2014 , and one of the dependent's passport expires in Dec 2014, then the visa issued for everyone would be valid only till Dec 2014.
One of my friends faced this situation, so make a note of this and plan accordingly.