Hello student cut off vary every year on various factors like level of question in examination seats available and total number of applicants in the entrance examination. As per the details you've mentioned you need to obtain rank around 2620to get admission in NIT Surathkal CSE.

Previous year the cut off was 2726 for CSE (OBC-HOME STATE).

For more details refer to the link mentioned below - https://www.google.com/amp/s/engineering.careers360.com/articles/jee-main-cutoff-for-nit-surathkal/amp

Feel free to comment if you've any doubt

Good luck