For Undergraduate : 10+2
Graduate : 16 years of education required (10+2+4)
You can apply Masters in the US after completing 16 years of undergraduate education.
Since most of the Indian Colleges have 3 year undergraduate program, it is advisable to do one more year of education, could be a diploma or a certificate program to make your education complete of 16 years. The course has to be recognised and accredited.
Good & Strong academic background
SAT, GRE, GMAT, TOEFL, IELTS etc.
Strong Recommendations Letter
To the point Statement of Purpose, essays & resumes
Certificates of extra curriculum activities if any
Strong financial background & good grades to get the scholarships
US universities insist upon a minimum IELTS of 6.0 to 6.5 and Tofel scores of 80 to 90.
The most common visa for students is the F1 visa that is a non-immigrant visa.
Good Academic Grades
TOEFL/IELTS/GRE/GMAT/SAT (As per the university requirement)
Proof of funds to be shown properly
It is always beneficial if you start early. You should start 12-18 months in advance before the date of enrolment , you get time to prepare a good application as well as avail scholarships and financial assistance.