Hii Srishti ,

This is Shalini.

First of all see the marking scheme of each topic.Then prepare a list in which you have to write the topics,their marks and how much time you will take to complete that topic.It is better if you can complete the topic in the time  given by you.

Give equal time to PCM.Be sure that you can attempt any questions coming from the topics you have prepared.

Then give some time to solve sample papers and marked yourself where you are.No one knows you better than you by yourself so if your marks are good then keep it up but if you don't  score good marks than more practice is needed.

Hope this answer will help you.

Thank you.

Best of luck!