Hello Aspirant,

Following are some dental colleges in Tamilnadu;

• Tamilnadu goverment dental college, Chennai
• SRM dental college, Ramapuram
• Saveetha dental college, Chennai
• Sri Ramchandra dental and medical college, Chennai
• Sri Ramkrishna dental college and hospital, Chennai

For more colleges go through following link;
https://medicine.careers360.com/colleges/list-of-bds-colleges-in-tamil-nadu

The cutoff for goverment quota was around 390 marks for BDS in NEET 2019. So this time you have to score 439 marks to secure a government seat.

For futher details about Cutoff go through following link;
https://medicine.careers360.com/articles/neet-cutoff-tamil-nadu


Hope this helps!!
All the best!!