Hello Student!

As your 1st part of question seems partly incomplete please clarify regards to that.

As far as 2nd part is concerned, I am providing you with a link that has all the details regarding colleges in Tamil Nadu, with their cut-offs.

NEET 2021 cutoff Tamil Nadu (2020, 19, 18, 17): Check college and category wise cutoff (careers360.com)

Please read the above mentioned article carefully, as you scroll down on your device while reading, you will find a tabular list of all colleges with the relevant information.

Here is a NEET predictor tool as well:

NEET College Predictor 2021 - Predict Colleges based on your Rank (careers360.com)

I hope this was helpful.

All the best! If you have any further questions please feel free to ask.