The details that you enter in the NEET application form should match with the one in your Identity proof or the uploaded documents. Of all, it should match with your 10th marks sheet because 10th marksheet words as the proof of date of Birth. This is unfortunate but the chances of you receiving your admit card when the mentioned details do not match with the one in the uploaded document are less. You might not receive your admit card. Even if you get the admit card, on the day of the exam when you take your admit card, the checking personnel might not allow you inside due to the discrepancy in the date of birth mentioned in the Admit card and the one in Aadhar card. You may have to appear for NEET 2021 as eitherways the chances of you appearing for NEET 2020 are quite less as the basic Personal details are wrong and mismatch..