Hello Aspirant,

Hope your doing well

try all of them before entrance exams:

• Try to make notes of the important topics as it will help you in last minute study. Revise the notes on regular basis. Before going for the exam, you can revise these notes. Notes written in your own hand writing is easy to understand and revise.
• try to find some useful books that  contains previous years solved question papers.
• It will provide you the idea about the examination but also let you know about the difficulty level of question paper. You can download the study materials from internet as well.

refer to the link for more information about upcoming exams details, cutoff ranking , admission procedure and many more

https://university.careers360.com/articles/jnu-sample-paper

Thankyou. Good Luck for everything ahead :)