Hello aspirant,

The colleges that you have mentioned are the top colleges, top branch that one can get via JEE scores and ranks through JOSAA counselling. The below mentioned cutoffs are for JEE ranks for CS branch in General Category:

• IIT Bombay - 66
• IIT Delhi - 105
• IIT Madras - 158
• IIT Kanpur - 239

Also, JEE mains percentile does not affect JEE Advanced rank. However, you need to clear the JEE mains cut off to qualify for JEE Advanced.

You can check out the cut offs of all IITs via the link below:

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

I hope this helps, All the Best!