Here are some of the preparation tips you acn follow:

Know about the exam

Go through with previous year papers to know about the exam level.

Practice sample papers and learn time management

The time duration for the exam is three hours and with multiple choice questions and negative marking, managing time and speed is very important. To better your speed do practise more and more with previous years question papers.

Analyze your performance:

You need to periodically solve mock test papers and monitor your progress. Doing this exercise will help you  identify your weak areas.

Take revision

Revision is very important to get memorised with your study. so after completing your one topic do revision of that.

Good Luck!