Aadhaar pan link
https://eportal.incometax.gov.in/iec/foservices/#/pre-login/bl-link-aadhaar
https://eportal.incometax.gov.in/iec/foservices/#/pre-login/link-aadhaar-status
Download esevai certificate
https://tnedistrict.tn.gov.in/tneda/VerifyCerti.xhtml