Don't worry about sharing Aadhaar number..
Unique Identification Authority of India (UIDAI) has introduced a new feature called 'Masked Aadhaar' in order to make Aadhaar more secure and safer. 'Masked Aadhaar' is an option that allows a person to cover their 12-digit unique identity in the downloaded Aadhaar or e Aadhaar. In case someone is asked to furnish Aadhaar has their ID proof they can do so without their Aadhaar number on display.
In the new 'Masked Aadhaar' option, the 12 digit identity number will get masked and only the last 4 digits will be displayed. However, the other information like demographic information, photograph, and the QR code will still be visible. The move aimed to make people use Aadhaar card more as an identity proof. To download the Masked Aadhaar, one will have to use the e-Aadhaar facility from the UIDAI website. Once they are on the page to download the e-Aadhaar, they get a choice to select between 'Regular' and 'Masked Aadhaar'.