Hey Venky,

You need to score well in either the SAT or ACT and recommend submitting two SAT subject tests, except in the case of financial hardship. And also Note that the SAT II English Language Proficiency Test ( ELPT ) is not acceptable as one of the two SAT Subject Tests.

For more details you can go through Harvard Univeristy official website or The following link given below,

https://college.harvard.edu/admissions/application-process/international-applicants

All the best!