Documents required for obtaining the visa

A nonrefundable application fee (You should find out the exact amount before going to the consulate and carry exact change if possible).

An application Form OF-156, completed and signed. Blank forms are available without charge at all U.S. consular offices; You may also download the forms over the web.
A passport valid for travel to the United States

One photograph 1 and 1/2 inches square (37x37mm) for each applicant, showing full face, without head covering, against a light background; and
For the "F" applicant, a Form I-20A-B. For the "M" applicant, a Form I-20M-N.

[These forms are sent by the institutions where you have applied and upon acceptance they send you these forms.]

Sponsorship letters

Student visa applicants must establish to the satisfaction of the consular officer that they have binding ties to a residence in a foreign country which they have no intention of abandoning, and that they will depart the United States when they have completed their studies.