Original valid passport at least six months from date of travel + old passport if available.
Appointment confirmation letter.
Covering letter from the applicant side on letter head or plain paper with full details, letter in favor of (To, The Visa Officer, US Embassy, New Delhi-India)
If you are visiting a relative, carry photocopies of the relative’s proof of status e.g. Sponsor letter, Green Card, naturalization certificate, passport copy with valid visa and proof of employment, bank statement last 6 months etc.
It is also helpful to carry evidence of how the trip will be financed along with letters of deputation, invitation or sponsorship.
NOC letter from employer on letter head full mention period of leave in letter and no objection
Copy of Credit cards with statement (If available).
Original personal bank statement last 6 months with name, address and bank contact details.
Personal Income Tax paper last 3 years.
Any other financial documents as property paper, LIC, shares, etc.