Good afternoon Santosh ,

See , PCM stream is not much easy as well as not much hard if you are consistent to your study.

I would like to share some major key points that will be helpful for your studies and your boards too. Here they are :

1. First of all , analyse the syllabus of your subjects and try to understand what is most important and what is less important.
2. Make time table according to your preference where you should give time to those subjects more that are tough for you.
3. Keep practicing the numerical portion daily.
4. In chemistry portion , make the seperate chart for organic reactions and paste it infront of your study table.
5. Make sure to revise daily the organic portion so that you will never forget the reactions as they play major role in your chemistry.
6. Keep practicing in physics and mathematics and be consistent.
7. Take healthy diet and proper sleep as it is also very important for your mind .

I hope it will ne helpful.

Good luck :-)