Hi there, 

The amount of marks depends upon the college in which you are trying to seek admissions. 

Through All India Counseling in NEET, to get a college you should have a score around 585+. For state counseling it depends on the respective state. For example, in West Bengal a score of 510+ will get you into a college. 

For more information check this link:

https://www.google.co.in/amp/s/medicine.careers360.com/articles/neet-cut-off/amp

Wishing you luck!