My spousal application has been submit to the visa office in buffalo. Received a letter from the visa ofice for additional documents such as my I-94 US visa and a letter from guarantor to prove that i enter US legal and stayed for a year Which i provide. Now i received letter from the visa office say that those document are not acceptable so they transfer my file to New Delhi. I would like to know if i have to go back to india, whether i have to do the medical exam again, do i need to contact the office in New delhi for change of mailing address. please help.