Hello Student,

According to previous years cutoffs to get an admission in a good government medical college under state Quota you need to score above 550 and if you are going through all India rank then you should score above 600.

Here you can check previous years cutoffs: 

https://www.google.com/amp/s/medicine.careers360.com/articles/neet-cutoff-tamil-nadu/amp

Hope it helps you

Thank you