Dear aspirant.

As you secured 481 marks in neet ug. Your expected rank will lie in between 1,04050 - 1,31,675 . You can check your rank though rank predictor tool

It is difficult to get a seet in government medical college of Tamil Nadu. You can check the previous years cutt of government medical college of Tamil Nadu. Link is given below

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

You can use college predictor too for neet ug.

https://medicine.careers360.com/neet-college-predictor?utm_source=qna&utm_medium=neet_cp

Thank you