Comedk is one of the easiest exam if you compare it with JEE MAIN, BITSAT, VIT, SRM, MANIPAL etc.

Assuming you are done with your syllabus and now you will be focusing on revision so you can consider below points -

Practicing previous question papers: It is always a good idea to go through previous years papers for it gives you a detailed idea of the type of questions frequently asked and also the level of difficulty.

Know your strengths and weaknesses: Your preparation is strictly governed by self-analysis. If you fail to find loopholes in your concepts or shy away from revisiting your mistakes, it is not going to do you any good.

Study within a schedule: Try to absolutely stick to your schedule and never procrastinate.
Revision notes: Lastly, make proper notes of concepts that require regular revision.

Remembering your syllabus: Keep a tab on the portion you have covered. This improves your preparation and helps you cover all the topics quickly.

Hope this helps!!!