Hi, I am in US and my H1B visa is Expired .I have New approved 797 till Dec’2015 with same company. so now i am going to visit india with my family. Is it required to get appointment and apear for Interview at Consulate for Stamping ? what is the procedure for stamping ? I lived in Gujrat and my first stamping was in Mumbai while second in Delhi and these time i am planing to go Mumbai. So, please let me know the Process.