Hello Piyush,  

To obtain admission in MBBS colleges the applicant needs to obtain the NEET qualifying percentile or NEET qualifying score. The NEET qualifying score is the minimum percentile that if needed to be achieved in order to gain admission to any medical college by passing the examination. For this each category has their own percentile. 

1- unreserved category : 50% that is 701-134 scores

2- physically handicapped : 45% that is 133-120 scores

3- scheduled caste : 40% that is 133-107 scores

4- scheduled tribe : 40% that is 133-107 scores

5- other backward classes : 40% that is 133-107 scores

6- scheduled caste - physically handicapped : 40% that is 133-107 scores

7- scheduled tribe - physically handicapped : 40% that is 133-107 scores

8- other backward classes - physically handicapped : 40% that is 133-107 scores

In case of government medical colleges you need to achieve a certain cutoff that these government colleges state which is different from one college to another. The colleges state these cutoffs after the result is declared and the cutoffs vary on basis of certain factors

1- number of sanctioned seats

2- all over performance of the applicants in the NEET examination 

3- the number of applicants to the college

4- the category to which the applicant belongs to

5- and of course the previous years cutoff marks. 

According to these the colleges decide on their cutoffs and to know these you might want to get in touch with the specific colleges and their authorities and enquire the same. You can use the following link to get information about the states and their government college cutoffs -

http://www.google.com/amp/s/medicine.careers360.com/articles/neet-cut-off-for-government-colleges/amp

Or you can use the college predictor -

http://www.medicine.careers360.com/neet-college-predictor

I hope this helped. 

All the best!!