Hey there!

With a score of 596, you have a good chance of securing a seat in a government medical college. For more information regarding the previous cut off trends and the colleges you might get with the rank you have secured, you are advised to visit the following links:

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

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

Hope this helps. All the best!