See to get admission in BTech Biotechnology in IPU  you need to appear for IPU CET examination.

The eligibility criteria for IPU CET is:

• Students must have passed class 12 or equivalent exam with at least 55% aggregate marks in Physics, Chemistry and Mathematics.

As you are from PCB and don't have Mathematics then you aren't eligible to sit in the admission which implies you are not eligible for the course.

To know more you may visit the link below:

https://engineering.careers360.com/articles/ipu-btech-eligibility-criteria

I hope my answer helps. All the very best for your future endeavors!