Now click on the Settings tab, and select Enable Email Verification (If you want OTP over SMS, you can select the Enable Phone Verification option) and click on the Save button to save your configurations.
Now click on the link given in point number 4 to Deselect the Require e-mail verification when a visitor creates an account option.
Ensure that the Require email verification when a visitor creates an account option is not checked. Click on the SAVE button on the bottom of the page to save your settings
Congratulations, you have successfully configured the Drupal 7 OTP Verification module. Now when new user try to register he will be asked for OTP Verification.
Still, if you are facing any difficulty or if you have any questions in mind, you can reach out to us by submitting a query in the Support tab of a module or by sending us a mail at email@example.com.