Hey, THanks for your question!

Selecting between a job and further studies can be a bit challenging, I get you here. However, there is a way to get yourself out of this confusion. Focus on what you really need and want. Think whether you are ready for the industry, you have the required skills, the required knowledge and if are ready to take up the challenges.

Follow same for your higher education. Which college you want to join, what specialisation you wish to study, what skills to learn. List down your all the pros and cons of a job and PG degree, and then decide as per your list. Whatever you'll do, if you are hardworking and passionate, you will succeed.

Regarding the next part of your question, about what to study for a career in Radio at PG level, you can either go for a Mass Communication degree or pursue a diploma in radio broadcasting. Both the degrees will teach about the use of media tools for either disseminating information or production. A specialised degree will provide you with an understanding of Radio journalism, radio programme generation, how to manage FM stations etc.

 Some of the institutes to pursue your radio course are, 

1. Indian Institute of Mass Communication, Delhi which offered PG diploma in radio and TV journalism

2. School of Broadcasting and Communication, Mumbai offering MA in Broadcast Journalism

3. ITIM, Delhi offers PG Diploma in mass comm (audiovisual production)

You can also read some additional details here- https://media.careers360.com/articles/top-mass-communication-courses-in-india

Hope this helps! All the best