Dear student,

No, it is not necessary. You can study Forensic Science if you belong to PCB or PCM stream also. You need to study B.Sc in Forensic Science and M.Sc in Forensic Science or Post Graduation Diploma in Forensic Science as well Ph.D in Forensic Science or M.Phill in Forensic Science to become Forensic Scientist. So no need not worry if you do not have Mathematics in your 12 th standard. You should have minimum 55 percentage in Physics, Chemistry and Mathematics/Biology in 12 th standard.

Hope this information helped you.

All The Best!!