There are a few reasons why your e-Aadhar card may not be showing the full Aadhaar number:

• Privacy concerns: To protect your personal information, the e-Aadhar card will only display the last four digits of your Aadhaar number.
• Technical issue: If you are facing an issue with your e-Aadhar card not showing the full Aadhaar number, there may be a technical issue with the website you are using to view the card. Try refreshing the page or accessing the website from a different browser or device.
• Incorrect credentials: If you are unable to view the full Aadhaar number on your e-Aadhar card, it may be because you have entered incorrect credentials while trying to view the card. Make sure you have entered the correct Aadhaar number and personal details.
• E-Aadhar card is not valid: E-Aadhar is a digital version of the Aadhaar card, which is valid as proof of identity. However, in case your e-Aadhar card is not valid, you can download it again from the UIDAI website after validating your mobile number.

If the problem persists, you can contact the UIDAI (Unique Identification Authority of India) for assistance.

Making PAN Card application Aadhaar Mandatory

The requirement of having an Aadhaar card linked to a Permanent Account Number PAN card was made mandatory by the Indian government in 2017 through the Finance Act. This was done to eliminate the use of multiple PAN cards by a single individual and improve tax compliance.
As per this rule, all taxpayers are required to link their Aadhaar number with their PAN card while filing their income tax returns.

If the PAN and Aadhaar are not linked, the PAN card becomes invalid.