Hello!Abhishek Kumar

Seeing your score and previous year cuttoff of NITs,you seems elligible for top ranked NITs with chemical stream.You can get chemical stream in MNIT ALLAHABAD.Visit below mention link to know for which top NITs you are elligible:

https://www.google.com/url?sa=t&source=web&rct=j&url=https://engineering.careers360.com/jee-main-college-predictor&ved=2ahUKEwiDsru__6LiAhUw63MBHeY0Ac0QFjABegQIAhAB&usg=AOvVaw1pTMu5LewXe0n3JPiA8V2U.

GOOD LUCK!