Hello aspirant,

You should have mentioned your score and All India Rank rather than your your category rank. Last year the cutoff of the government medical colleges in Tamil Nadu from state quota was 260+. Last year students with 260+ got a seat. Every year the cutoff varies and this year the cutoff may increase. So you need to have a score of 300+ or 350+ to be on the safe side. If you have a score of 320 to 350 then you may get a seat. To predict the colleges which you can get visit the link.  

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

Thank you.