I got 87.25 percentile and general EWS catagary from UP

Hey Shivam!

It appears that your question is incomplete as you have only shared your NTA score and have not completed your query. Kindly complete your question or reply in comments with the full query or problem that you want to be solved. If you want to predict your expected rank based on these scores, then you can use this rank formula which would predict your expected rank, however, keep in mind these are only prediction and you can improve your scores and rank by performing well in the April Mains :-

So, 100-your percentile score is the percentage of people ahead of you. Also, note that 869010 students participated in Jan Mains. So, your expected rank is (100 - your total score) X 869010 /100. If the number of candidates for April exam increased to 1200000 then your final rank shall be (100 - your total score) X 1200000/100

In your case the rank comes out to be around 110798. Remember that it is the General or Common Rank and not the category rank as category ranks are prepared based on number of same category students participating in the exam and it can't be predicted at this instant.

Also, after knowing your rank, you can use this college predictor to know what colleges you would get based on these January scores

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 ...