Dear aspirant,
The cut off varies as per the IIITs like IIIT hyderbad has the highest cut off among all the IIITs and it would be around 200-300 for the cse branch and 500 for ece branch.
Iiit bhopal,iiit bhagalpur are newer iiits and has compartively lower cut offs.
Although various factors are considered while deciding the cut offs like number of candidates appearing in the examination, number of vacant seats in college, previous years cut offs and difficulty level of the paper.
For more information you can check out the link given below-
https://engineering.careers360.com/articles/jee-main-cutoff
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile