Following are few of the common questions asked during the United States Visa interview:

• What is the reason for your travel to the United States? ...
• What is the duration of your stay in the United States? ...
• Where will you be staying? ...
• Where do you stay in India? ...
• Who is going to cover your expenses during the travel?

What do you need to bring?

1. Passport – must be in good condition, 6 months validity.
2. Ticket – must be a two-way ticket. To prove you're a tourist. Otherwise, they will doubt that you have a different purpose in visiting the country.
3. Visa – check for countries that require visa in entering their country.

For most short term visas, you will have to prove that you have ties in your home country that will ensure your need to return to your home country once you have completed your permitted stay in the country. Failure to provide this or providing insufficient proof of this will lead to visa rejection. 

Reasons for Visa Refusal

Your visa may be rejected, if you have provided wrong information in your visa application form. If you have a past history of criminal activities against you. If you apply for a visa without a valid justification on a short notice.