I have done my basic registration and code generation for last may 2019 aiims exam but I didn't completed entire Registration
Dear candidate,
You are advised to start with a fresh registration for the examination.But since you did not complete the last registration,it might happen that your previous data pops out and does not allow you to register.
In such case try using different email is and phone number but if it does not work you would have to go with the previous one.