To apply for a B.Sc. (Biology) or B.Sc. (Zoology) undergraduate course, you'll generally need to complete your 10+2 with science subjects from a recognized board, typically including Physics, Chemistry, and Biology. Some institutions may require specific minimum marks or offer admission based on entrance exams like CUET or others specific to the university. After meeting the eligibility criteria, you'll need to apply through the university's online portal, potentially participating in counselling or further rounds of selection.