Hello,

Every year the institute specific and course specific cut off changes depending on the total number of candidates appeared, difficulty level of examination and total number of seats available etc. Each institute has different cut off for each branch. You should be able to secure a rank below 5000 to have decent chances of getting seat in top IITs. Every year the total marks for JEE Advanced changes so it is not possible to indicate a specific score. To be on the safe side you need to score minimum 45-55% (or above ) of total score in JEE Advanced.

Here is the link where you can find the previous year cut off IITs

https://engineering.careers360.com/articles/jee-advanced-cutoff-for-iits