Dear aspirant

Hope you are doing well. It is difficult to predict because cut off change every year depends on various factors

• No of seat available
• No of students apper in exam
• Difficulty level of exam.

As you secured 512 mark in neet ug exam your expected rank will lie in between 77,546 - 79654. So chance are  less to get a government medical seat. This is based on previous years trends, you can check your cut off using the link given below

You can check the previous years cut off of government medical college through given link below

https://medicine.careers360.com/articles/neet-cut-off

You can use neet college predictor tool to get chance in other college

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

Thank you, hope this information helpful for you.