Hello, Rajesh 

You have secured a good score but it is difficult to say that you will definitely get a government college because cut off is different every year depending on category home state etc 

However 543 is good score for getting government college.you have a good chance to get a 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