I have PCB in my class 11 can I do computer science from USA from NYU or Harvard university

As a full-time student at MIT, students can cross-register for classes at Harvard University – Faculty of Arts and Sciences and one of the professional schools (some exceptions applicable). First-year UG student is not eligible for this. There is no additional fees to cross-register. Fees may apply

As an Indian student planning to go for the Fall semester, you should try and request the I-20 form by March to early April to allow the F-1 visa processing. 

The visa appointment wait times are longer in India, so it may take 2 to 4 months to get an appointment for the visa interview. 

Aimi

No, Harvard does not prefer students applying in the Restrictive Early round rather than the later rounds. The Harvard acceptance rate may seem higher for REA, but it is merely the result of a smaller pool of highly qualified applicants. 

So, the timings have no real effect in admissions at Harv

The Harvard University Early Action is non-binding for all students around the world. 

This means that if an Indian students has applied under the Restrictive Early Action and has also received an offer to attend this university, they are not bound to attend and also have the free will to accept

For admission to the UG courses of Harvard Uni, as such no GPA has been mentioned. But since with an acceptance rate of 4% for Indian students, Harvard Uni is one of the most selective universities in the world, UG students should have a GPA of 4.0 - 4.2 in their Class 12. The PG course requirements