Dear aspirant hope you are doing well..

First of all..

• Yes, In case your mobile number is registered in Aadhaar, you can find your Enrolment number (EID) or Aadhaar (UID) by clicking on “Retrieve Lost UID/EID” tab under Section Aadhaar enrolment on uidai.gov.in website or https://resident.uidai.gov.in/lost-uideid.
• You can go through your email and message, you can get your application form details / enrollment details etc..
• Or you can login yourself to the dashboard, you can see your enrollment no there.

Hope it's helpful thank you