hi,

jee main cutoff is various institutes changes over time to time, depends on questions difficulty level, students category, seat matrix etc. see jee main april session exam is yet to held and it will have effects on your current percentile if number of applicants increased this time. however I would put vit vellore ahead than north east nits, in terms of placement  and infrastructure, internship opportunities.

you may use careers360 college predictor tool to know about your probability of colleges,