SET

1-Ditch those guide books. The syllabus cannot be covered with them ever.
2-Trust past year's questions paper more than your syllabus.
3-The books I tried to read were - (a) Mass communication Theory : Foundations, Fermented, and Future, sixth edition, by Stanley J. Baran, Dennis K. Davis. (b) Introduction to Communication Studies by John Fiske (3rd Edition) (c) Mass Media Research- An Introduction; 9th Edition, by Roger D. Wimmer and Joseph R. Dominick (d) Development Communication by Uma Narula (e) International Communication by V. S. Gupta (f) Public Relations Handbook (2nd Edition) by Alison Thacker (g) Advertising Theory and Practice by Ruchi Gupta (h) Oxford Dictionary of Media and Communication
4-For topics like laws, ethics, history of media, animation or film, I made my own notes with the help of internet. Just go through old papers and find out concepts which are asked often. Then you can study those from pdfs or from other internet based sources.
5-The notes or resources, which you have studied in your post graduation, are extremely helpful for this examination.
6-Keval J. Kumar is a common book. A lot of students like that for NET as well. I didnt find that helpful though. Hope this helps. Thanks for reading.