Class 3 signing
Individuals, directors, CAs
Tax and company filings, EPFO, tenders and GeM, trademark and reissue.

When your Digital Signature Certificate (DSC) nears expiry, the word “renewal” is a little misleading. You are not extending the old certificate. You are applying for a fresh certificate under a fresh Certifying Authority (CA) verification, and then re-registering that new certificate on every portal where you use it. This post explains what to do and how the portal registrations are affected.
The CA verifies your identity through one of the approved routes: Aadhaar eKYC biometric, paper-based application with physical verification, or eKYC OTP combined with video KYC. A renewed certificate is issued after this verification clears, exactly like a new one.
Each portal registration is separate, so after you receive the new certificate you must register it again everywhere you used the old one.
GST. Register the new DSC against the authorised signatory’s PAN on the GST portal.
MCA. MCA21 V3 requires directors, managers, secretaries and practising professionals to register their DSC as business users. Register the new certificate in each role.
Income tax. Register the new DSC on the income tax portal before you sign and upload any further forms.
eProc. A DSC mapped to one account cannot be remapped to another; it can only be inactivated. If your renewed certificate is a new DSC, enrol it on eProc as you did the first time.
Class 2 issuance was discontinued from 1 January 2021, so an expired Class 2 certificate cannot be renewed as Class 2. New certificates are Class 3. If you still hold a Class 2 certificate, treat renewal as a fresh Class 3 application.
The eProc portal’s renewal advisory asks tender inviting authorities to ensure that during DSC renewal the old encryption key is retained and not deleted from the token, because existing tenders due for opening cannot be decrypted without it. Formatting DSC tokens should be avoided; the portal’s ideal option is a new physical token each time a DSC is renewed or purchased. If you hold a combo certificate and bid on eProc, keep this in mind when you renew.
Do not leave renewal to the last week. We do not publish a number of days before expiry, because the right timing depends on the CA’s verification process, which varies. What we can say is that an expired DSC stops signing, so the gap between expiry and a new certificate is downtime you want to avoid. Start the process before your current certificate expires and re-register on each portal as soon as the new one is issued.
We are a Registration Authority (RA) for VSign, Capricorn, eMudhra, Sify, nCODE and PantaSign. These CCA-licensed Certifying Authorities issue the Class 3 signing DSCs. Application support is included in the price. Once your certificate is issued we deliver within 1 to 2 hours in Udaipur, the same day or next day in nearby towns, and within 72 hours by Speed Post across India. Pickup from our Hiran Magri office is free; courier delivery carries a flat charge per order. See the product pages for current prices and our renewal page for the process.
The certificate for this work
Individuals, directors, CAs
Tax and company filings, EPFO, tenders and GeM, trademark and reissue.
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