Hi Hari

According to last year cut offs the safe score under your category for 

• Government Mbbs seats is 595
• Government BDS seats is 530

You can get the information about colleges and their cut off from your state in the link given below:

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

These cut offs just give a rough idea and changes evrey year depending on the number of applicants, number of seats and diificulty level of exam

You can also predict your college form the link given below by filling in your details:

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

Best Wishes 

Era Madaria