JEE

Your expected JEE Main AIR is about 194127. You have few possibility in NIT Suratkhal for B.Tech Chemical. The following are the other options for you.
1. IIIT Raipur
2. IIIT Una
3. IIIT Sonepat.

Firstly congratulations regarding the score getting the score itself isn't important even counselling process also matters a lot. Firstly keep top colleges first there will be no problem regarding it since we can keep as many as we want in the list and then proceed in the decreasing order of colleges at last keep the unwanted colleges this ensure you to get a better version of colleges.

Please write about the college name for better response. However for NITs, JEE Main percentile above 97 can be good enough for admission.

Of course yes, If you secure a good percentile like 95 to 99 then you get into NIT Easily.

SEE you may get colleges if you belong to Sc/st. But there is no confirmation from my side. But I suggest you go till last round and spot round in counselling, If any chance of getting a NIT's you may get. There is very less chance of General and OBC candidates in with this percentile for NIT's.