hi,

see every year cutoff score changes and it varies on certain factors like number of applicants, questions difficulty level, seat matrix, etc. you may calculate your general rank based on the below formula,

100 - (your total percentile) * 869010 /100

now jee main april session exam is yet to held and if number of candidates increased this time it would have effect on your current score or percentile. now 85% seat are reserve for domicile candidate in every nits, and at this score you have less chances for demanding branches like cse, ece, ee, IT in any nits.