Hello,
You see, cracking mass communication or any other entrance exam cannot be done by reading some books, you have to be determined about your goal and look out for information at other sources too. However, you may refer to the following:
1. Success Master: Journalism & Mass Communication Entrance Examinations 2019
2. Manorama Yearbook 2019
These books will help you with current affairs, general knowledge and basic aspects of media. Apart from that, you should read a newspaper thoroughly on daily basis, choose the important news articles of national and world importance and cut it out and paste it in your notebook at least for 30 days or rewrite them in your language.
All the best for your exam!
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