Sristi, I had to present my I-20 and other IDS to get Driving license in NYC in 2002. I think your problem can be solved by your International Student Advisor. One of of Students had similar case like urs, international advisor contacted to INS office and send studnet to INS office with his letter. Since this is their mistake, there gotta to something to fix their mistake. i suggest you to contact your advisor and he/she is the only person who can help you now. best of luck