Masters or MA (Master of Arts) in Journalism and Mass Comm, are both same. It's just the degree name varies, rest the course structure, the education level, curriculum, practicals, everything remains same. After pursuing any of them you will complete your Masters level of education. Do not worry about this, select a good institute and programme for yourself.
The curriculum for, both MA or Masters, programmes are designed to impart proficiency in all areas, incorporating the latest media industry trends. This not only includes theoretical aspects but also practical exposure through studios, newsrooms, clubs etc. Besides regular classroom teaching and practical learning, Mass Comm students also have mandatorily internships.
Proposed Course Structure by UGC for Mass Comm students, which is to be followed by every institute/university.
First Semester: 1. Principles of Mass Communication 2. Development of Media 3. Print Media-I (Reporting and Editing) 4. Electronic Media (Radio and Television) 5. Advertising and Public Relations/Corporate Communication
Second Semester: 1. Development Communication 2. Communication Research 3. Media Law and Ethics 4. International Communication 5. Media Management
Third Semester: 1. Print Media-II 2. Radio 3. Television 4. Advertising 5. Public Relations/Corporate Communication
Fourth Semester: 1. New Media Applications 2. Inter-cultural Communication 3. Specialization 4. Dissertation 5. Attachment
Though this is the old one, but it will give you a fair idea about the curriculum- https://www.ugc.ac.in/oldpdf/modelcurriculum/masscomm.pdf
Hope this helps.