pyaradeshbasiharu,

Thanks for your response. I am pretty sure you are aware of OPT. Let me explain briefly though. Even if you have OPT authorization, your status still would be F-1 right? So, as long as the OPT lasts, school has to issue a new I-20. Regarding the H1 visa, we are working on that part but as usual it might take some time to be authorized and I am in a position that may need me to travel soon after my contract starts. Since I have a kind of contract or job offer letter from my future employer and evidences to show I am a full time graduate student, I thought it might be a better idea to have my passport stamped with US visa. Therefore desperately need help to make a check list of doc.

Thnaks everyone