Hello aspirant

You haven't mentioned your category to which you belong .

Considering you as general candidate it's not possible to get a mbbs seat with 320 score , though you may try for other medical courses , also  it depends upon neet cut off  2024 . Cut off changes every year. It is  dependent on factors including students appeared , seat intake , difficulty level of exam,  normalisation process and previous year's cut off.

Qualifying percentile For general category is 50 percentile ie score between 720 - 137

As you seek admission in Tamil Nadu

You may try in following colleges

ACS medical college and Hospital,  Chennai

Alagappan university

For rank prediction you may visit the link given below

https://medicine.careers360.com/neet-rank-predictor

For college prediction you must follow the link given below

https://medicine.careers360.com/neet-college-predictor