Hey Vipul, 

Comgratulations on scoring such good percentile in JEE Mains.As per the cutoff updates JEE main 2019 cutoff will range from 95-105.Following the trend of the previous year the cutoff for NITs in respect of general candidates may be in the range of 78-80 percentile for round 1.The official cutoffswill be declared by all NITs.Candidates qualifying JEE Mains will be eligible for counselling.You should try for the top NITs and not lose hope.You may have to wait for cutoff round 2 also.Also EWS reservation will be of advantage to you for qualifying JEE Mains.Keep yourself updated with the official websites of the NITs.

Best of luck.

Hi Vipul ! Yes you can get nit with this percentile because you will get a seperate rank on basis of ews category ranking. As per your percentile your gc rank may extends upto 2 lacs and in tems of ews it may be 1000-2000. You may get a good nit with good streams. So best of luck to you.