Hello, 

Christian Medical College which is the best college of Tamil Nadu state will have cutoff this year above 600 only. Other medical colleges of the states like Tuthukudi GMC, Kanyakumari GMC Asaripallam, Vellore GMC, Theni GMC, etc last year had somewhat similar cutoff around 430 but this year as you might be knowing that the cutoff is expected to rise since the number of candidates had increased and also the paper level was called easy comparatively. So they will all have cutoff around 440s. 

For more detailed information, refer to our site 

https://medicine.careers360.com/articles/neet-cutoff-tamil-nadu