Hey there, 

As per your query I would like to tell you that according to your rank and based upon the previous year cuttoff. you needed more to score for getting admission in government medical college. Above 440 is safer for Bc candidate will getting admission in government medical college in tamil nadu. 

As per year the cuttoff marks varies depending upon the number of students appearing in the exam and the difficulty level of exam papers. 

using college neet predictor for know the chances of getting admission in government medical. click upon the link mentioned below :

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