Hello aspirant,

Hope you are doing absolutely great.

So with regard to your query, there are two ways for you to recover your registration number, 1) you would have received an email or a message to your phone soon after registration for the application, check it out if it present there. However, if there is nu such thing in your phone, then you need to contact the authorities for the purpose of help, their contact number will be available in the site itself, check it out and contact, they will definitely help you.

Hope this helps you!!