Masters

Check the information from the given link.
https://www.shiksha.com/college/loyola-academy-degree-and-pg-college-secunderabad-50367/course-b-a-psychology-english-journalism-267803

You can get all the information in the link given below:-
https://www.shiksha.com/humanities-social-sciences/colleges/m-a-international-relations-colleges-india.

Application date: December 2022-April 2023.
Exam date: May 2022.

Here are some colleges-
Peerless Hospital and BK Roy Research Center, Kolkata. NSHM Kolkata - NSHM Knowledge Campus.
WBUHS Kolkata - West Bengal University of Health Sciences.
Genesis Institute of Management and Technology, Kolkata. IMS Kolkata - Institute of Management Study

You can refer to the link given below-
https://www.shiksha.com/college/isb-m-college-of-commerce-nande-pune-28478/placement

Refer to the link given below-
https://www.shiksha.com/university/gurugram-university-gurgaon-63443/cutoff

Hi. Here are the few career options you can go for-
1.Careers in Regulatory Affairs
2.Regulatory affairs specialist.
3.Regulatory affairs manager.
4.Regulatory affairs director.
5.Compliance specialist.
6.Food safety inspector.
7.Clinical research associate.
8.Director of quality assurance.

As far as I know, Masters degree maybe better than PG Diploma. The course fees for PG Diploma is less than Masters degree, but the points that you will get are same. Also, decide as per your interest and willingness.

Check the link for MBA:
https://ask.shiksha.com/i-want-to-know-about-the-latest-cutoff-information-for-master-of-business-administration-mba-at-university-of-qna-6872637

Hii, It totally depends on your choice. Whichever you like the most choose that only.