Dear Aspirant

I hope you are doing good. As per your query , I would like to tell you that  it is very difficult to predict marks for getting admission because on each year on every rank marks are different due to difficulty level ,no. of students appeared because it doesnt remain same in every year . However, you need to score rank below 5000 to get admission in top branches like cse and for ece you will get admission till 15000 . For your reference, I am sharing the cut off link

https://university.careers360.com/articles/kiitee-cutoff

Hope you found this answer helpful. Good luck for your future