The possible instances in which any NEET application might be rejected are:

• If an incomplete application has been submitted.
• The same Candidate has submitted different application forms
• If the details mentioned in the application do not match with the document that you have uploaded.

You can only get to know the Status of your application once the admit card has been released and you cannot download your admit card. There is no way of knowing it earlier. NTA also clearly mentions in the Information Bulletin that once the correction window has been closed, neither will it entertain any requests for corrections nor will it make changes to the application on its own. And that is the reason NTA instructs all the Candidates that all the details like name, date of birth, parent's details should be mentioned as per the 10th marks sheet. And the second chance to correct that is the Correction window. If you have missed those two opportunities, now because it is out of your hands and it is upto NTA as to how it will take a call on this, you have to wait until NTA releases NEET admit cards. There is no other way out.