i got 85.22 percentile in OBC category what can i get government nit college

Your rank can be predicted by using the formula, (100-your total percentile)*869010/100. In your case, your approximate rank would be 128439 . Let's say the number of candidates for April exam increased to 12,00,000 then your final rank shall be (100 - your total score) X 12,00,000/100.

You haven't mentioned the State you belong to because with your percentile, even with OBC reservation, it is difficult for a seat during JOSAA Counselling. And you have borderline chances to qualify for JEE Advanced because any percentile above 85 at this point in time is expected to be qualifying percentile for JEE Advanced. So please do help us with the State you belong to. Or you can as well check the cut offs of various NITs of previous years. Now cut offs do change every year depending on various factors but this will give you a fair idea of the trend. https://engineering.careers360.com/articles/jee-main-cutoff

Now to predict colleges, please use our college predictor:

JEE Main College Predictor 2020 - Predict Colleges based on your JEE Main Rank

JEE Main College Predictor – Know your College Admission Chances Based on your Rank/Percentile, Home State, Caste, Gender, Exam Result & Get ...