Answered on September 21,2019
This happens when you have already created another DigiLocker account and linked your Aadhaar number with that account. Please note linking of same Aadhaar number with 2 DigiLocker accounts is not permissible.
You cannot delete Digilocker account. So your Aadhaar number will be linked to your Digilocker account permanently. Also, you cannot delete the documents pulled from other departments (Income Tax Departments, CBSE etc.) into Digilocker account.
Please retrieve your Aadhaar linked account details by following the steps given below:
Visit Forgot Username link and select "Aadhaar User" tab (in case you do not remember your Aadhaar linked account username). After verifying the account through OTP, you will be able to get your username.
Visit Forgot Password link and follow the steps. You will be able to reset your password through this step.
Login with the Username/Password retrieved using the above steps.