hello aspirant...

as per the expected cutoff for this years jee mains examination for the general category is 89.75 in comparison to it yours is a bit behind. its fine because this is not the official cutoff announced by the nta. it may vary from this result. if it is so, you may qualify for the jee advanced examination but as far as the admission for the nits are considered you should atleast require 95 above percentile to get admission in you preferred college for your desired course. all you can do is study hard for the next session of jee examination and do well in them...

hope this information is useful to you...

all the best for your bright future...