Hi Abhijeet,

PG Diploma is Mass Communication from India Today Media Institute is a good course to begin with. A 2-year full time course is extensively designed to give you strong theoretical knowledge and the ability to apply it in practical situations. 

If you have a Bachelor's in media, what you will learn in the Diploma course will just be an addition and in-depth exposure to courses that you have already done. However, this will be beneficial in getting you to be more equipped in the work atmosphere.

In the 2 years of your course, there are a plathora of courses that will be offered. Based on these courses and subjects, i will suggest to you possible career options and job positions that you can pursue after your education.

In addition, there are specialisations that you can choose in your second semester.

First year will comprise of subjects such as-

Digital Communication, Public Service Communication, Introduction to Advertising, Audio-visual Communication, Consumer behavior, journalism, marketing, Public relations, research, radio programming and broadcast management. Additionally, basic sofwares such as Photoshop will be taught. 

Digital Media Entreprenuership, Proffesional Communication, Research Methodology and cross culture communication are also offered.

The above are basic courses that are meant to help you identify your interests. 

In case you are interested in pursuing research and want to become a professor, the subjects related to research will be beneficial to you.

The specialisations begin in semester 2 along with generic subjects and their career scopes are mentioned below-

1. In case you choose audio-visual communication

• Broadcast Technician
• Audio and Video Equipment Technician
• Sound Engineering Technician
• Recording Engineer
• Radio Operator
• Sound Mixer
• Field Technician
• Chief Engineer of Sound and Video
  

The above jobs are purely technical and the ideal fit would be in a broadcast company

2. In case you choose Journalism,

• Reporter/Special Correspondent
  
• TV News Anchor
  
• Broadcast News Analyst
  
• Feature Writer
  
• Columnist
  
• Editor
  
• Photo-Journalist
  
• News Researcher
  

3. In case you choose Communication Management,

• Public Relations Specialist
  
• Social Media Manager
  
• Event Manager
  
• Brand Manager
  
• Corporate Communications Head
  

Hope this gave you better insight,

Good luck!