Hi,

The marks which you have scored is a good one and first you should calculate your rank so that it will give you a better idea about what your rank will be so for that you can use any rank predictor just you have to put your data correctly and your rank will be generated. Now talking about the branch ie, CSE with a specialisation in Cyber Security is considered as one of the desired field among the students due to its popularity and seeing at your marks i can say that their is a quite high chance of getting your mentioned field so you should surely try for it.

Thank you..