Hi,
There is less chance for you to get in CSE branch in Coimbatore. The closing rank for CSE in 2017 is 13,801 which may decrease this year. In 2015 it was 8000, so it can be predicted that there are less chances to obtain the branch . You can hope for it.There are chances for ECE . The closing rank for ECE in 2017 is 19,822 and in 2015 is 9000. You can expect to get the ECE branch.
You can use the college prediction tool for getting much more clarity on this idea.
https://engineering.careers360.com/college-predictor-result/50044?s=67524658891558198868