Greetings 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 176.5, you can secure a CSE, EEE, Mechanical seats in Sri Eshwar College of Engineering (SECE), Coimbatore as the cutoff for BC was 199 in TNEA in the year 2017. So, just apply to their counselling process and you'll easily secure seat.

https://www.careers360.com/colleges/sri-eshwar-college-of-engineering-coimbatore/cut-off

You can have a look at the detailed glance about everything related to SSN previous year cut-off trends from the above link.

Hope I've cleared all your doubts!!

All the best for your future career