Hi Devam,

Of course, you can go for Masters in Mass communications abroad. The required marks would depend on the type of university you are applying to. 

Top universities require at least high 8 and 9 point CGPA along with good IELTS/TOEFL and GRE.

There are other universities may not require that high score. DO go through this link for more information.

https://studyabroad.careers360.com/articles/top-countries-study-mass-communication

Do share your academic details with me to help you better.

Hi
The answer must have cleared your doubts Deval. Just to add a bit,
Universities abroad admit students with not only good academic record but students with good profiles.  A CGPA of 7 is a good to apply. Now the term profile is referred as, your practical exposure during your programme, your academic projects, industrial training, extracurricular skills, internship exposures etc. They need students who are good at academics but also are keen and passionate towards learnings and profession. Of course, as mentioned in the previous answer, each university has different score requirements and admission process, but mostly, all universities demand students with a good overall profile. 
To develop a good profile for your study abroad, focus on your projects and assignments. Not only compete them but make sure you learn something. Take initiatives during classroom teachings, practicals or studio projects. participate in your college's events, get certificates. You must compile such work, as you would be required to list all of it during your applications abroad. This adds value to your profile and hence better chances for admissions. 
If you have any other query, drop your question. All the best!