Hello Sharanya!

Yes, you can do a B.Sc. in Computer Science after your 12th with a PCB combination along with Computer Science but without Mathematics. However, some institutions or colleges do require mathematics eligibility for B.Sc. CS programs, so do keep that in mind as well and check the requirements for the institutions that you are applying to.

If you get into a situation where math is required at many places, you may either opt for institutions that do not require you to have math skills or take up the course at a later stage of life.

Thankyou!