dear aspirant,

firstly congrats to your sister, based on marks we can't say that she get good NIT or not, it is difficult to predict the cutoff marks for colleges actually it is based on category also .hope your sister may get good college.

for more information please the below link:https://www.embibe.com/exams/ranking-of-all-nits/

all the best

thank you.

HEllo ramesh

Well, it's very difficult as of now,to predict the cutoff for colleges of JEE mains based on percentile.You can first calculate your rank by rank=(100-percentile)*874469/100.With this rank,you can compare previous year's cutoff for different colleges and can predict some of the colleges you may be getting.But remember this is not the final rank.It will change based on the april session of mains.Hence,it will be best to wait for your final score,releasing after april session.For predicting colleges, visit https://engineering.careers360.com/jee-main-rank-predictor  ..Hope this helps.

Good Luck!