Hello,

According to the Eligibility criteria for KVPY exam-

Candidates who are studying in 10+2 standard must have scored 60% in the exam (50% for SC/ST/PwD candidates)
Candidates have to pursue bachelor in basic sciences only
Candidates must secure minimum 75% in class 10 while SC/ST/PwD candidates have to score 65% in aggregate of all science subjects and mathematics to be eligible to apply for KVPY exam.

You can refer to the link below for detailed information-

 https://school.careers360.com/articles/kvpy

Hope this helps.

Good Luck!