Hello,

First of all, there's no age limit for appearing in NEET and secondly, NEET does not base its eligibility criteria in terms of your graduation marks. It follows the rule mentioned below-

Eligibility Criteria for NEET:- Candidates must have passed 10+2 or equivalent with Physics, Chemistry, Biology/Biotechnology and English as core subjects from a recognized board. Candidates who are appearing for the class 12 or equivalent exam are also eligible to apply for NEET 2020.

Aggregate marks for only PCB is considered, which is different for each category mentioned below-

UR - 50%,
OBC/SC/ST - 40%,
PWD - 45%