Hello, Sourabh 

Congratulations you have secured a good score but it will be difficult for me to say that you will definitely get a government college because cutt off varies every year depending on category home state etc 

However 500+ is a good score with 10% reservation is good for getting a government college.You have a 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