Introduction

In today’s digital economy, almost every government and corporate filing requires a Digital Signature Certificate (DSC) — a secure, electronic form of signature that verifies identity and ensures data integrity.

Whether you’re registering a company, filing GST returns, submitting tenders, or signing ROC forms, a valid DSC is essential for authentication.

In this 2025 guide, Bisways Consulting Group explains what DSCs are, their types, uses, renewal process, and the updated certifying authority guidelines for the new financial year.

What Is a Digital Signature Certificate (DSC)?

A Digital Signature Certificate (DSC) is an encrypted electronic key issued by a governmentapproved Certifying Authority (CA).

It validates the identity of the individual or organisation in digital transactions and ensures that data cannot be altered after signing.

The Information Technology Act, 2000 grants legal recognition to digital signatures in India, making them equivalent to physical signatures for official filings.

Where DSC Is Used

• MCA Filings – For signing ROC forms such as SPICe+, AOC-4, MGT-7, DIR-3 KYC, ADT-1, and others

• GST Filings – For GST registration, return filing, and e-invoicing authentication.

• Income Tax Portal – For e-verification of returns and submissions by companies and LLPs.

• Tender / e-Procurement – For signing bids and documents on government procurement portals.

• EPFO / DGFT / ICEGATE / Patent Office – For online submissions and verifications.

💡 Note: DSCs provide non-repudiation, meaning once a form is digitally signed, the signer cannot deny the action later.

Types of Digital Signature Certificates

Documents Required for DSC Application

For Individuals:

• PAN Card.

• Aadhaar Card / Passport / Driving Licence

• Passport-size Photograph

• Email ID and Mobile Number

For Organisations:

• Company PAN and Incorporation Certificate

• Authorisation Letter on Company LetterheadAuthorisation Letter on Company Letterhead

• Director / Partner KYC

• Board Resolution (if applicable)

Step-by-Step DSC Application Process

If Form ADT-1 is not filed within the due date:

• 1. Choose an authorised Certifying Authority (CA) such as eMudhra, Sify, Capricorn, or VSign

• 2. Visit the CA website and select Class 3 DSC – Individual or Organisation.

• 3. Complete the online KYC process via Aadhaar / PAN verification.

• 4. Record video verification (as per CCA guidelines).

• 5. Make the payment and download the DSC token software

• 6. The DSC will be issued and stored on a USB e-Token for secure use.

⚠ Validity: DSCs are typically valid for 2 or 3 years, after which they must be renewed.

Renewal of DSC

• Renewal must be done before expiry to avoid re-verification delays.

• Apply with the same Certifying Authority through its renewal portal.

• Updated KYC and OTP verification may be required.

• The new certificate will be reissued to your registered e-token.

DSC Usage Best Practices

• Keep your e-Token password confidential and never share it.

• Install DSC drivers only from authorised websites.

• Regularly check validity through MCA or CA verification tools.

• Renew at least 15 days before expiry to avoid disruption in filings.

Conclusion

A Digital Signature Certificate is no longer optional — it’s an indispensable compliance tool for every business and professional.

Whether you’re a company director, practising professional, or government contractor, maintaining a valid DSC ensures seamless digital filings and enhanced security.

Bisways Consulting Group assists with DSC procurement, renewal, and integration across MCA, GST, and Income Tax platforms — ensuring your compliance is always digitally ready.