Hello, Rohith

It will be difficult to say that you will definitely get a government college because cut off varies from year to year depending on difficulty level category home state etc 

However 500+ is good score for getting a government college and you have scored 483 you a little chance of getting government college 

I'm providing you a link which can help you

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

Hope this helps you if you have any queries you can add in comment section

Thank you