what if i got 70% in boards and a good score in JEE MAINS PAPER 2 can i get NIT (OBC NCL) as i think the eligibility for B.ARCH is 50%

Hello Candidate,
The eligibility criterias for BArch are:
1.Minimum 50% marks (45% aggregate for Reserved category) in 10+2 Examination or equivalent with Mathematics as subjects,

Or

10+3 Diploma (any stream) recognized by Central/ State Governments with 50% Aggregate marks,
Since you have 70% marks in your boards, yes you're eligible.
All the best :)