Diploma

What do you want to pursue and what are your plans now?

Yes you can do that provided your advance Diploma is considered equivalent to 12th grade.

Yes, you can apply for the admission.

What course are you asking about?

There is not many Diploma programme available for the same. But, there is plenty of PG Diploma available at IGNOU.

Yes, you can apply for the admission. It will depend on the seats available there.

Kindly check link mentioned below:https://www.shiksha.com/business-management-studies/course/diploma-in-business-management-indian-school-of-business-management-and-administration-Hyderabad-banjara-hills-107204
All the best.

Yes, the study gap would be a major problem. But, it must be okay, if you did something productive during the gap, eg work. You can give it a try. But, I would suggest you not to keep your hopes up. There's a high chance for visa rejection if you cannot provide proof of activities done during your gap.

No Diploma is equivalent to graduation, one should go for degree programs. Then only you can do advance studies eg: PG and Ph.D.

Hi,
Indian Institute of Mass Communication (IIMC ) Entrance Exam. Sheetal Thapar
Success Master: Journalism & Mass Communication Entrance Examinations. Arihant Publications
Mass Communication in India. Keval J Kumar
Manorama Yearbook. Manorama
Good luck.