Hi Rashid, 

The last four digits would be printed on your Aadhar card.Kindly refer to your card for the same.

Hello dear candidate. 

You Aadhar card has a 12 digit Unique Identification (UID) number.  The last digits of the same would be printed on your Aadhar card. Kindly refer to your card and UID for the same.

Kindly refer to this link for further information. 

https://uidai.gov.in/14-english-uk/1018-aadhaar-as-identity-document.html

Hope this helps.