We cannot say anything precise until you tell us about the college you are seeking for. As the cut off of various colleges are different for CSE  and for different courses in those colleges . Therfore ,you need to mention the college name ,that for which college you want cut off for CSE .

But in order to get admission in CSE BRANCH  in top most colleges,  you need to score a very good percentile(above 97 percentile) in jee mains or advance .

To predict your college , kindly visit the link given below:

1. Through JEE MAINS Exam:

https://engineering.careers360.com/jee-main-college-predictor?utm_source=qna&utm_medium=jee_cp

2. Through JEE ADVANCE :

https://engineering.careers360.com/jee-advanced-college-predictor?utm_source=qna&utm_medium=jee_adv_cp