Hello Aspirant,
To refer to the cut off of the NEET 2018 for OBC category, I am attaching a link below which will redirect you to the page where all the information you are seeking is given. Also the link provides you all the information you need to know about this year exam.

https://medicine.careers360.com/articles/neet-cut-off
Hope this answers your question. 

Hello Divya,

The cut-off for goverment colleges fare quite high. As you belong to the OBC category, still you must score in the minimum range of more than 250 marks. Marks below that would not make you eligible for government colleges. Also you must have a AIR between 15000-35000 for easy and tension free admissions. 

For further detail you can check careers360 website wherethere is a detailed information regarding NEET marking scheme. 

All the Best!