If you need to share your Aadhaar number with someone, you can share the masked Aadhaar instead of your full Aadhaar number. This will help to protect your privacy. To get a masked Aadhaar, you can follow these steps: Visit the official website of UIDAI at https://uidai.gov.in/. Under the “My Aadhaar" section, click on “Download Aadhaar."