Knowledge Center

Digital Signature Certificate guides

Everything supporting our Digital Signature Certificate in India pillar — grouped by what you're trying to do.

Fix a problem

Diagnostic pages for the errors that stop a certificate from working.

USB token not detected — DSC driver fixes

Step-by-step fixes when your DSC USB token is not detected — driver installs for ePass 2003, ProxKey, HYP2003 and WatchData, browser setup, and portal-specific errors.

Apply: USB Token for Digital Signature Certificate · Digital Signature Certificate in India

Buying guides

Choosing the right certificate, provider and token before you pay.

Government portals

How DSCs are registered and used on MCA, GST, Income Tax, DGFT and ICEGATE.

Installation & troubleshooting

Driver setup, browser configuration and the errors that block signing.

General DSC guides

Class 3 basics, renewal timelines and location-specific walkthroughs.

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