Dear,

Before starting any preparations for the entrance test must go through syllabus. By solving CUSAT sample papers, you can get an idea about the pattern of the entrance test, types of questions asked, marking scheme etc. Regularly solving CUSAT CAT sample papers, you will also get essence of efficient time management and will be very helpful on the day of the exam.

You can sample papers here:

https://engineering.careers360.com/articles/cusat-cat-sample-papers

Hope this helps!