Of course you can. Most PG programs in Journalism require you to be a graduate in any field. They are very open and liberal in this regard.

Let me give you a list of 10-11 entrnace exams that you can take to get into a PG Diploma/Degree in Journalism. Have a look here - https://media.careers360.com/exams/PG

read about them and pick the one's you like. and then if have some more questions about any particular college or course, feel free to ask. all the best