Hello! Hope you are doing well. Firstly, congratulations for your rank in KIITEE. According to the cut off in the previous years i.e., in 2015 the closing rank for CSE is 5044 and in 2013 the closing rank for CSE is 5356. But this may change every year based on different factors like difficulty level of paper,no. of seats, no. of people attended the exam etc. So, this may change. But we cannot say that you will definitely get a seat in CSE. But still, you attend the counselling and that would be better. You can also refer about it in the following link:

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

Hope you understood this and this information is useful to you. Good luck!