how much marks is necessary to select in iits
Thanks for contacting career360.
For every student its different since there are criteria.
And below is link which make you clear about all your doubts
.https://www.jeeadv.ac.in/Eligibility-Criteria.html
There is no such exact cut off for IITs as Jee advanced paper pattern changes every year but to get a rough idea about required rank you can go through the previous year cut off trend -
https://engineering.careers360.com/articles/jee-advanced-cutoff
Good Luck!!!