Greetings of the day dear aspirant

The cut-off trends keeps changing every year and it depends on the number of students attempting the exam, difficulty level, number of available seats, etc. With marks of 168, you cannot secure a CSE seat in Government College of Engineering, Nagercoil as the closing marks for CSE branch was 180 in the year 2017 for OC/ General Category candidate. Whereas, you have chances of securing Information Technology (IT) seat as the closing marks was 170 in the year 2017 for OC/General Category candidate. So, just apply to their counselling process and tryto secure a seat.

https://www.careers360.com/colleges/university-college-of-engineering-nagercoil/cut-off

You can have a look at the detailed glance about everything related to Government College of Engineering, Nagercoil previous year cut-off trends from the above link.

Hope I've cleared all your doubts!!

All the best for your future career