Tnvelaivaaippu — About online employment registration

Sir/ madam,

I have no idea about the registration in tamil nadu employment service. While i am creating new registration details, i got the message as "my aadhaar card number is already exist". But i am not sure that i have created my registration number already. If i already registered, how to retrieve my user id, password and registration number. If i am not registered, then why it is displayed as "my aadhaar card number is already exist". So please help me.