By how much percentage after 12 can I apply for media?

Eligibility Criteria to get in media is you must pass class 12 with atleast 50% marks in aggregate in 5 subjects including English as compulsory subject along with 4 subjects with the highest score out of the remaining subjects.

Some of the mass communication courses,you can persue after 12th are:

Executive Programme in Digital Transformation, Certificate course in Anchoring,Post Graduate Certificate in Marketing and Brand Management, Certificate in Advertising,Public Relations, Certificate in Radio Jockey,Diploma in Documentary Filmmaking,PGDM in Media and communication,PGD in journalism and Mass Communication,BSC in hotel and hospitality management,BA in Journalism and Mass communication,PGD in Mass communication and media laws,MA in Journalism and Mass communication,MA in public relations,PhD in media studies,PhD in journalism and mass communication.