Yes, for the IISER aptitude test, the biology section is compulsory for all candidates, including those from a computer science background. It's important to prepare for that section, as it will be part of the overall evaluation.
I gave a mock test here.. But I didn't get the result.. How to get the result of the mock test?
How to get admission here what's the criteria
Please provide the third semester syllabus for the B.Sc B.Ed course?