Hi Ritik,

Himachal Pradesh Common Entrance Test is conducted by Himachal Pradesh Technical University. It is a state level exam which is used for admissions to BTech./BPharmacy/ BPharmacy (Ayurveda), MTech, MPharmacy, MCA and MBA being offered by HPTU and colleges affiliated to it.

According to the eligibility criteria for HPCET, candidate should have Physics and Mathematics as a compulsory subjects along with Chemistry/biology/Biotechnology/Technical Vocational Subject scoring minimum 45% marks for general and 40% for reserved category for subjects in a group.

So, you cannot take biology instead of Mathematics. 

All the best!!