hello,
to get admission in iisc you need to qualify in either kvpy or neet and jee main exam. as cutoff scores are different for different exam, it is really impossible to predict. however scoring around 90+ in kvpy has great chances for selecting in bsc course in iisc.
please follow the below link to know more details,
https://engineering.careers360.com/articles/iisc-bs-eligibility-criteria
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