If you need to confirm the authenticity of a Sikkim Income Certificate, you can now use the SSO Sikkim portal at Visit sso.sikkim.gov.in. This service is open to citizens, employers, educational institutions, and government bodies. To verify a certificate, simply enter the application reference number, the holder’s name, and the date of issue. The portal will display the certificate’s issuance status, demographic details, and validity period. You can also scan the QR code printed on the certificate for instant verification. For those without internet access, verification and printouts are available at any Common Service Centre (CSC) across Sikkim.