Hey,

In order to be eligible to opt for graduation in biotechnology engineering you need have passed your 10+2 from a recognised board with science as your mandatory subject. You need to have Physics, Chemistry and Biology/ Mathematics as your mandatory subjects in 12th.

You can also visit the link below to get a detailed analysis of the same-

https://www.careers360.com/courses/b-tech-in-biotechnology

Hope this helps.