Whether you have already applied for tourist visa and is she staying in India on Tourist vise?, if so, you can convert the tourist visa to X visa by following certain procedural formalities meant for this purpose.
you'll need to apply at your local FRRO/FRO, which in accordance with Section 1, Note 2 of this document, must make a recommendation and forward it to the MHA in Delhi for approval if the matter is outside its delegated powers. This notice states that all applications must be made through a FRRO or FRO. If you have any queries, contact the Visa Support Center in Delhi on 011-22560198, 011-22560199 or email at email@example.com
Two main documents are needed for Tourist to X Visa conversions: 1) Submission of a copy of registered Marriage Certificate. 2) Report from the relevant local police station about marital status, including observations, confirmation of living together, and security clearance. The only place in India that has the authority to authorize this is the Ministry of Home Affairs in New Delhi.
You'll need to go to the Foreigner's Division, which specifically deals with visa issues, and have an interview there.
Here is the address: Ministry of Home Affairs, Foreigner's Division, Jaisalmer House, 26 Mansingh Rd, New Delhi.
There are two ways of scheduling your interview.
Appointments can be made online, up to 30 days in advance, using the Online VISA Appointment Scheduling System, or
Simply turn up and take a place in the line.
If you use the appointment scheduling system, be sure to print all documents including application form and appointment slip.