Hello,

To prepare biology in just 2 months firstly you need completely NCERT  because most questions directly come from from it. Divide the syllabus into daily targets and study biology for 2-3 hours everyday. Make short diagrams for quick revision. Practice PYQs and MCQs on regular basis. And in last 2-3 weeks focus mainly on revision and mock tests. Consistency and repeated revision will help you in scoring more.

I hope this will help you.

Thank you.