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. In Anna University, Chennai, the opening marks for CSE brach was 183 and the closing marks was 200 in TNEA. For ECE Branch, the opening marks was 192.75 and a closing marks of 200. For EEE branch, the opening and closing marks were 189.5 and 199.67 respectively.

https://engineering.careers360.com/articles/tnea-cutoff/amp

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

Hope I've cleared all your doubts!!

All the best for your future endeavours