[Ankur]

The nice thing about America is that one can go for (almost) any higher study in any stream regardless of their undergrad specialization. The college will review your credentials and add additional units to compensate for your missing specialties.

One of my friend is pursuing Medicine (doctor) although she had done BA from India. Just that she has to do many pre-requisite units.

Although it will be very hard to get a fresh student visa from India to USA based on that kind of transition, but in case you already have a visa (like work visa, student visa or spouse visa of USA), then things become a lot easier.