Can I do journalism at JNU after my Bachelor's in Computer Science and Engineering.. if so how??

yes you can BUT instead of joining JNU a place where kanahaiya like students tries to break the unity of our country this kind of environment among students and faculty are shamful , there are many college offering mass communication and journalism master's degree i listed them 1. Apeejay Institute

yes u can.but try to go specalized colleges in journalism.