I see there is option to download E-Aadhaar card from the (http://eaadhaar.uidai.gov.in/eDetails.aspx) i download the E-Aadhaar card and when i open it it show validity unknown I try the following step but still in vain How to Validate Digital Signatures on e-Aadhaar? In case you see the ‘validity unknown’ icon on your e-Aadhaar, please follow the below procedure: - 1) Right click on the ‘validity unknown’ icon and click on ‘Validate Signature’. 2) You will get the signature validation status window, click on ‘Signature Properties’. 3) Click on ‘Show Certificate..’ 4) Verify that there is a certification path named 'CCA India 2011'. This identifies CCA India as the owner of the digital certificate that has been used when signing the document. 5) Mark the certification path named 'CCA India 2011', click the 'Trust' tab and then 'Add to Trusted Identities'. 6) Answer 'OK' to any security question that follows. 7) Check(√) the field for 'Use this certificate as a trusted root' and click 'OK' twice to close this and the next window. 8) Click 'Validate Signature' to execute the validation. Note: - Once 'CCA India 2011' has been as a Trusted Identity, any subsequent documents with digital signatures from CCA will be validated automatically when opened.