My petition just got approved and I have recieved my I-797B. Below are my questions - 1. In I-797B the consulate location is given as Chennai. My current location is Mumbai. Does it mean I have to visit Chennai for stamping? 2. I have two passports as of now. The latest one is a re-issue due to address change. During visa filling my petition for H1B I had only one passport and submiited the same. During stamping will this create a problem and should I carry/submit both for stamping? Will they look at my old passport at all?