To get admission in NIT through JEE Mains , 83 percentile is not good enough. You have to secure above 95 percentile. Check JEE Marks vs percentile

JEE Main result was announced on March 8 for February session.

Hi aspirant

You haven't scored enough to get NITs/IIITs and GFTIs .So you can try for state engineering colleges.

You can get state engineering colleges .You must be knowing form this year onwards almost all state engineering college will take admission on the basis of JEE mains marks .You can apply for state counselling.

If you have appeared in other engineering entrances like BITSAT,VITEEE,SRMJEE,GITAM,Manipal or any other ,You can try to get college through them also.

Use college predictor to predict you colleges:https://engineering.careers360.com/jee-main-college-predictor

Hope this was helpful.