Hello student. LLB entrance exam in JMI is indeed a challenging one

But with the right preperation, you can crack it.

First thing is know the syllabus and know the weightage of each topic so that priority can be given to more weightage first

There are 5 things which you have to prepare

1. Legal language and English

2. Current affairs

3. Legal aptitude

4. General studies

5. Elementary maths

Know the subtopics and syllabus of each of these and split the topics. Make a schedule of what needs to be prepared each day and get that done. Before 15 days the exam, take the mock tests, mark your mistakes and go through that topics from which question has come and you weren't able to attend or mistake os done.

Prepare notes or hand book for formulae, important concepts etc

For more information about tips, books to prepare kindly refer the link

https://law.careers360.com/articles/how-prepare-for-jmi-ba-llb