With the help of cut off,you can only tell to an extent whether you would get seat in a particular college or not. You will know for sure only on the day of your counselling.
It changes year to year, eg. if more students have preferred ECE over CSE last year, we cannot come to a conclusion that it will be easy to get a CSE seat this year too. This year, more students may opt for CSE than ECE or maybe Mechanical or EEE. Only, the way the people before you choose College and Branch determines whether you will get seat or not.
If you want to know if it is possible to get a particular branch in a college, see the counselling trends over the years in this site.