Help Required for F4 Catagory for Applicant spouse

[shashi143ca]

Hi,

My Sister is an US citizen and she sponsored me for immigration through brother and sister category (F4).

My file got processed in NVC and I have received mail from NVC on August 25,2011stating that my Immigration Visa interview at the U.S. Embassy /Consulate in Chennai (Madras) has been scheduled on October 11, 2011 at 1:00PM.

Only my name got appeared for interview. Now I want to add my wife name so that we both can travel to U.S

Request you to please let me know the procedure and to add my wife name in the travelling applicant list along with me.

Also, how much time it will take to process.

Thanks in Advance

Shashikanth.M

shashi143ca@*****.com