You shall receive message and a confirmation email once your Neet application form has been accepted
Also in your profile it will be mentioned that you have been successfully registered for the Neet application procedures and it will show the complete biodata that you have filled in once you open your profile on the website
hope this answer helps and I sincerely hope that if you check out the following things you will get an idea as to whether you are registered or not

National Eligibility cum Entrance Test

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