Hello Aspirant,

Oc or open category consist of all the reserved category like gen,SC,St,obc etc. After filling of 49%of reserved seats then other seats are filled in which student of any category can occupy seat irrespective of category. To get seat in top NIT and in top branches till Chemical Engineering you need to score above 130 or 140. I would rather suggest you to keep an aim to score 150 in JEE Mains as it would be a safe score to get seat in any of the NIT.

Thank you.