Hello AspIrant,

As we know that TNEA is conducted by  DoTE (Directorate of Technical Education) and it does not provide any correction facility for registered applicants. So if you have not made payment of application fee yet than you can fill another application form from other number and e-mail id or you can edit the same, but if you have made the successful payment of application fee than there is other option, just drop an e-mail to the competent authorities at given mail-ID :-

care@tneaonline.org

They would better suggest you about this issue.

Good Lucck!!