Yes, you can pursue MA in Journalism and Mass Communication after BA in Political Science. Most of the Private as well as Public Central Universities offer that flexibility, Journalism being a very lucrative career choice today. However, you may have to go through a proper application/admission process or entrance exam, depending on the University you apply to.

For more information about Colleges having MA Journalism Course do follow the link below

https://university.careers360.com/colleges/list-of-ma-in-journalism-degree-colleges-in-india