B.J Scope

You can certainly get an MBA after completing B.J. M. CA B.A. In Journalism, or B.M.C. You can get an MBA in Media Communication, an MBA in Mass Communication, etc. Lexicon Management Institute of Leadership and Excellence is one of the best universities I know. The following are good points to support my opinion.
1. Over 15 additional Certificate programs awarded to students to better prepare them for industry
2. Unique classroom pedagogy
3. Excellent corporate connectivity
4. Regular industry visit
5. Student-to-school travel time
6. Paid internships for each student over a period of 9 months
7. Fully digital classrooms.

Master of Arts in Media Studies and Production. Master of Arts in Advertising & Marketing Management. Master of Arts in Advertising & Public Relations. Master of Arts in Advertising and Design. Master of Arts in Broadcast Journalism. Master of Arts in Communication
And there are plenty more to choose from.

Yes, you can get a very good job but on the basis of your quality and scores.

Yes, they do have a placement cell.

As you have asked for NRAI, yes they says and they provides the placement, they have a placement cell. Media channels, production houses, ad and PR agencies, research organizations and companies visits their campus But ultimately you have to do your own efforts and hard work, because it is must to choose and go ahead as per your interest.