The F1 visa procedure is comparatively straightforward but can be time consuming, therefore it's important to begin this process after possible to make sure that any delays won't make a difference in your education. In terms of visa requirements, they vary based on the place you travel. Bear in mind that visa issuance isn't guaranteed. When it is authorized for single entry only, you'll need to turn in an application for a new visa so as to reenter the U.S. at a future date. The fee is payable in various currencies in various countries. The visa fee is based on the essence of the reciprocal relationship between India and each nation.