Sorry to say but you will not get NIT at 86 percentile,but you can go for GFTI that is government funded technology institutions , i have a better option you should go for private university like CHANDIGARH UNIVERSITY ,amity that offers excellent academics ,and also offers scholarship upto 75 percent of jee mains score and 50 percent on 12th score, you can choose any one of it, nice placements,and as far as cbse results are considered there is not a confirmed date, according to sources, result would come till first week of aug,and i i think you know better what you have scored