My documents as per the US embassy website. In addition i had the letter from the CLient i was working for, pictures of myself taken at my workplace. I didn't have any doc from Shram Karlaya. This was off season so i got the appointmen t very easily. i applied on april 19 and my interview was on April 27 and got visa stamped on my PP on April 28. I didn't have any problem at the airport however its always better to be prepared with all your documents.