Company & Entity Registration

Digital Signature Certificate (DSC)

Class 3 digital signatures for filings and portals that require them.

Apply for a Class 3 DSC

What is Digital Signature Certificate (DSC)?

A Digital Signature Certificate (DSC) links a digital signature to a verified subscriber. Class 3 certificates are issued by licensed Certifying Authorities after the applicant completes the required identity verification.

A DSC may be used on company, tax, government or tender portals where the relevant filing or signatory role requires it. Portal requirements and supported certificate types can differ.

Dattriox helps applicants prepare the application. The Certifying Authority verifies identity, manages certificate issuance and sets the applicable verification and token requirements.

When a DSC may be needed

  • Some online filings and tender processes require an authorised person to sign documents using a valid DSC.
  • The correct certificate and applicant depend on the portal, the filing and the person's role in the entity.
  • The subscriber must protect the private key and any token PIN; a DSC does not replace entity registration or other approvals.

Typical applicant documents

The Certifying Authority may request additional information or verification based on the current application route.

  • Applicant PAN card
  • Applicant Aadhaar card
  • Passport-size photograph
  • Active mobile number and email for verification

Do not have every document ready? Start your application and our team will guide you through the checklist.

Frequently asked questions

Who issues a Class 3 Digital Signature Certificate?

A licensed Certifying Authority issues it after verifying the subscriber. Dattriox can assist with application preparation but is not the issuing authority.

Which Class 3 verification methods are available?

The Controller of Certifying Authorities lists Aadhaar eKYC biometric, Aadhaar OTP with video verification, and paper-document routes with in-person or video verification. Confirm the current route with the selected Certifying Authority.

Does every company filing require a DSC?

Not every filing or signatory uses the same certificate. Check the current portal instructions and the role assigned to the person signing.

Does a DSC register my company?

No. A DSC is a digital signing credential; company incorporation and other registrations are separate processes.

Official resources

Explore more guides on the Dattriox resources page.

Ready to get started?

Prepare the applicant details and identity documents; the licensed Certifying Authority completes verification and issues the certificate.

Apply for a Class 3 DSC