I interviewed at Delhi consulate in early May for my J1 revewal. I was given a white 221G slip. On July 8th I received an email from the consulate asking me to submit information related to my full travel history to USA. Since they already have my passport and I have provided my travel history in DS 160 I am not sure what other proof I can give. I would appreciate if somebody can advise me in this. Thanks in advance.