The Cutt off marks of Neet is normally 550 to get the government seat for every category . We cannot say the exact marks for every category because the cutoff is increasing every year after year . still the safe marks for the categories are :-

Sc - 450 and above

St - 400 and above 

OBC - 480 and above 

https://medicine.careers360.com/exams/neet

The above link will guide you to all details to the exam.

For unreserved you should target above 500.

https://medicine.careers360.com/articles/neet-know-expected-cut-off-and-section-wise-analysis

Check this link, might help you more. Thanks