M.A

It is not compulsory but after MBA, tour chances will increase for HR. Without MBA, you have to struggle very much. Therefore, I suggest you to pursue MBA.

Eligibility criteria for admission:
a) Eligibility for entrance mode admission:
Candidate must have done B.A. (Hons.) or B.A from any recognized university with a minimum aggregate of 50% or must be a graduate from a recognized Indian university with a minimum aggregate of 60%.
b) Eligibility for merit mode admission:
Candidate must have done B.A. (Hons.) in Political Science from the University of Delhi with a minimum aggregate of 50%.
For details visit: https://www.shiksha.com/humanities-social-sciences/political-science/course/m-a-in-political-science-lady-shri-ram-college-for-women-lajpat-nagar-delhi-88545

Here is the list of top colleges:
https://www.shiksha.com/humanities-social-sciences/colleges/m-a-colleges-Hyderabad

Yes, your rank is good so, there are some chances that you can get seat here. You can apply for admission. Good luck.

https://www.shiksha.com/science/colleges/distance-correspondence-m-sc-colleges-india
https://www.shiksha.com/humanities-social-sciences/colleges/distance-correspondence-m-a-colleges-india
Use these link to know about the colleges. Good luck.

Yes, you can go for the graduation level examination after completing your B.Sc in radiology. Good luck.

Hi,The university does not have any such course, but it offers postgraduate Diploma in mass communication. Thanks.

If you intend to come back to India after doing your Masters in US then it is better that you pursue the said course in India itself as it will give you better exposure to the Indian context of business, moreover you will have the advantage of internship & campus placement as well.