We recommend joining particular yahoo groups where many different students from India discuss F1 Visa interview tips and their interview experiences. An example of one such group would be:

http://groups.yahoo.com/group/US_F1_VISA/

1. When you go for the visa interview dress decently. Speak slowly and clearly. Don't appear tense and don't look desperate. Self-confidence is the key.  

2. Always carry pencil, eraser, sharpener, glue when standing in the line at the consulate. You may need it to make some changes. (Make sure you don’t carry any of these things inside, as you are not allowed to do that. Also make sure not to carry any sharp objects, digital watch, chocolates or gums, cell phone inside the consulate). 

3. You should be able to convince them that you will come back to India after graduating. If they ask you, points in favor may be

• Only child in the family.
• Hefty immovable property in India (take documents proving the same).
• Lots of relatives in India and none abroad.
• Parents not willing to come to USA for settlement.
• Interest in teaching in India after graduating from USA.
• Willing to serve the Indian industries after completing studies in USA. 

4. The ideal time to reach the consulate is half an hour before the scheduled interview time. 

5. Things to be taken with you when you go for the visa

• Signed I-20 form. (School and Student copy).
• Completely filled visa application form.
• Two 35mm by 35mm size photos (take some glue).*
• Your passport.
• Admission & financial aid letters.
• TOEFL & GRE score reports (original and photocopy).
• Original copy of grade reports from your Indian Institution.
• Copy of Statement of Purpose.
• C.A Certificate (not necessary in all cases).
• Affidavit of your sponsor/s addressed to the Consulate General of USA.
• Original copy of I.T returns of your sponsors for the past three years.
• Bank Statement showing the liquid property in the name of your sponsors.
• Original copy of degree awarded, if available.
• Summary statement of the complete liquid and fixed assets. This is the most important document which an individual should have and should be duly signed by your sponsor. This is the document to be shown when asked "How do you intend to pay for your tuition fees and living expenses".