Hi

I am sorry to tell you dear but if you are a Biology student and don't have maths then you cannot do BTech computer science .

This is because,

If you want to do BTech computer science then   you should have compulsorily studied Maths in your 10+2.

For your reference,

Jee main is the most reputed and most widely accepted Engineering entrance examination and its eligibility criteria is given below-

-) Qualification required :- to be eligible  for JEE mains you need 10+2/equivalent qualification

To know the compete jee main eligibility criteria  go through our page, the link for which is provided below

https://engineering.careers360.com/articles/jee-main-eligibility-criteria

But yes,

You are eligible for B tech like B tech biotechnology only   and also not all colleges offer it to Biology students . There are a few College like VIT which offers B tech biotechnology to Biology students.

For example,

To be eligible  VITEEE exam for btech biotechnology , one needs an aggregate of at least 60% in Physics, Chemistry, Mathematics/Biology in 12th board exam or 50 % in aggregate of physics chemistry maths/ biology is belongs to SC or St category

So, both students Math / Biology are eligible for B tech biotechnology in VIT .So being a Biology student you can pursue BTech biotechnology in VIT

You can check the same at our page link is provided below

https://www.careers360.com/university/vellore-institute-of-technology-vellore/btech-biotechnology-course

Thank you