Important Docs: 1) I-797 (which states your h1b approval) 2) Employment Verification letter from your employer 3) Your Recent W2 4) Paystubs for last 3,4 months 5) Your previous I-20s 6) OPT card (if you have any) 7) The degrees and transcripts you have obtained in US 8) Your bank statement (if your spouse is accompanying you as dependent) 9) Any other docs that you think would be helpful Please try to take all the above mentioned docs with you (just to be in the safe side). In my case though, the consular didnt even ask for my file which had all the above mentioned docs. He look into my original I-797 and started asking me about my job, the place that I am working at, my pay etc. It was more like a conversation than an interview and went very soomth. But I know few of my friends who have been asked to produce all the docs that I mentioned above. Dont panic, but do your proper homework and take all the docs - there is no harm in being extra cautious. Regarding Shram Bivag, you have to take your stamped passport and a letter from your office stating that you have been employed there. Trust me, you will have to spend about 2,000 Nrs to make this "shram bivag" thing smooth - otherwise there are lot of hassels. You wil find some agents around the office who will help you. Good Luck......