Hi,
The eligibility criteria in IITs differs with respect to the course you choose. IITs offer a number of degrees like B.Tech, M.Tech, MBA, PhD etc.
Do mention which course you intend to pursue so that we can help you with necessary information.
If you're looking for B.Tech, admission is done based on marks obtained in JEE Advanced and the general admission criteria for Btech remains the same as most colleges i.e. Passed Class 12 with at least 75% aggregate from recognised board with Physics, Chemistry and Mathematics as mandatory subjects.
Check out the link for more details.
https://engineering.careers360.com/articles/jee-advanced-eligibility-criteria
Hope this was helpful.
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