Your chances are pretty good in Annamalai University with a cutoff of 181.5 as an SC candidate particularly if you are also applying under the 7.5% government school quota.

For example, the SC cutoff for B.E. in Electrical and Electronics Engineering at Anna University in 2025 was estimated to be in the range of 180–186.

The final outcome will depend on the specific branch you choose and the overall competition during TNEA counseling.

Good luck!!