Greetings of the day dear Lalitha

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. In Sri Sivasubramaniya Nadar (SSN) College of Engineering in Kalavakkam, the opening marks for CSE brach was 166 and the closing marks was 199 in TNEA previous few years. In College of Engineering Guindy (CEG), the closing rank was 92 in the year 2018 and 87 in 2019 for CSE Branch.

https://www.careers360.com/colleges/sri-sivasubramaniya-nadar-college-of-engineering-kalavakkam/cut-off

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

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

Hope I've cleared all your doubts!!

All the best for your future endeavours