Hey aspirant

MIT muzaffarpur does not take admissions through jee mains.You have to write Bihar combined entrance competitive examination (BCECE) to get admission into MIT muzaffarpur. T

You should have a rank below 2000 in BCECE to get admission in that in college.

rank formula for jee mains is is (100 - your total score) X 869010 /100 (tel:869010100) .100 - your total percentile score is the percentage  of people ahead of you. 869010 (tel:869010) are the number of candidates appeared for Jan exam.If the number of candidates for April exam increased to 1200000 (tel:1200000) then your final rank shall be (100 - your total score) X 1200000/100 (tel:1200000100)
So your approximate rank will be 156421 . You can use career360's college predictor to check which college you can get admission . I am attaching the link below

Hope my answer helped .