Hello Aspirant,

PCM stands for three subjects Physics, Chemistry and Mathematics whereas PCB stands for Physics, Chemistry and Biology.

These are the stream which you have to choose in class 11th for both years that are class 11th and 12th.

For admission in courses of forensic science you need to pass 10+2 with PCM/PCB.

I hope this information helps you. For further doubts feel free to ask.

Good Luck!!