Digital Signature Certificate (DSC) in India: Types, Process & Fees (2026 Guide)
A Digital Signature Certificate is what lets you sign MCA filings, GST returns, income tax returns, and tender documents electronically with the same legal weight as a wet-ink signature. This guide explains DSC classes, how the Class 3-only regime works since 2021, documents, the e-KYC issuance process, and how KanoonPe gets you a DSC with a flat all-inclusive quote.
Quick summary
- What it is: A legally valid electronic signature stored on a secure USB token, used to sign government e-filings.
- Governed by: the Information Technology Act, 2000, regulated by the Controller of Certifying Authorities (CCA).
- Mandatory if: you file with MCA/ROC, GST, income tax e-filing, e-tendering portals, or trademark/patent applications requiring digital authentication.
- KanoonPe price: Flat, all-inclusive quote on a free callback · Timeline: typically same day to 1–2 working days.
Quick facts
| Detail | Information |
|---|---|
| Governing law | Information Technology Act, 2000 |
| Authority | Controller of Certifying Authorities (CCA); issued via licensed CAs (eMudhra, Sify, Capricorn, Protean) |
| DSC class issued | Class 3 only (Class 2 discontinued from 1 January 2021) |
| Timeline | Same day to 1–2 working days |
| KanoonPe price | Flat, all-inclusive quote - request a free callback |
| Validity | 1, 2, or 3 years, renewable |
What is a Digital Signature Certificate (DSC)?
A Digital Signature Certificate (DSC) is an electronic credential, issued by a licensed Certifying Authority under the Information Technology Act, 2000, that authenticates a person's identity when signing documents digitally. It carries the same legal validity as a handwritten signature for filings made with government portals.
DSCs are issued as encrypted files stored on a FIPS-certified USB crypto token, which plugs into your computer whenever you need to sign a filing. Since 1 January 2021, the CCA discontinued Class 2 certificates - Class 3 is now the only class issued in India, offering a higher assurance level suitable for all regulatory filings, e-tendering, and high-value transactions.
Every director, partner, or authorised signatory who signs statutory filings on behalf of a business typically needs their own DSC.
Types of Digital Signature Certificate
| Type | Use case |
|---|---|
| Signature-only DSC | Used purely to digitally sign documents and forms - MCA/ROC filings, income tax returns, GST filings |
| Signature + Encryption (Combo) DSC | Adds encryption capability - used for e-tendering, GeM portal, and secure document exchange requiring confidentiality |
Both types are issued only as Class 3 certificates today, and are available with 1-year, 2-year, or 3-year validity, stored on a USB token.
Who needs a DSC?
- Company directors and LLP designated partners signing MCA/ROC e-forms (SPICe+, AOC-4, MGT-7, etc.).
- Business owners and authorised signatories filing GST returns and applications on the GST portal.
- Taxpayers filing income tax returns and tax audit reports requiring digital signing.
- Vendors bidding on e-tendering platforms and the Government e-Marketplace (GeM).
- Applicants filing trademark, patent, or copyright applications online.
- Chartered accountants, company secretaries, and other professionals certifying statutory filings.
Benefits of getting a DSC
- Legally valid e-signing - equivalent to a handwritten signature under the IT Act, 2000.
- Mandatory for MCA/ROC filings - company and LLP e-forms cannot be filed without a director's DSC.
- Faster, paperless filing - sign and submit documents instantly without printing or courier.
- Enables e-tendering and GeM participation - required to bid on government and PSU tenders.
- Secure and tamper-proof - cryptographic signing prevents document alteration after signing.
- Reusable across portals - one DSC works for MCA, GST, income tax, and trademark filings.
Documents required for DSC
Identity and address
- PAN card
- Aadhaar card
Verification
- Passport-size photograph
- Active mobile number and email ID for OTP-based Aadhaar e-KYC
- Live video verification (paperless process - no physical documents needed to courier)
For organisational DSC (optional, for business-authenticated certificates)
- Certificate of incorporation/registration
- Authorisation letter/board resolution naming the signatory
DSC issuance process (step by step)
- Choose the right DSC type. We confirm whether you need signature-only or combo (signature + encryption), and the validity period (1/2/3 years).
- Submit application details. Provide PAN, Aadhaar, photograph, mobile, and email for the application form.
- Complete Aadhaar e-KYC. Verify your identity via Aadhaar-based OTP or biometric e-KYC - this is now fully paperless.
- Video verification. Complete a short live video call for identity confirmation, as mandated by CCA guidelines.
- Certificate generation. The licensed Certifying Authority verifies your e-KYC and generates the Class 3 DSC.
- Download to USB token. Your DSC is downloaded onto a FIPS-certified USB crypto token, ready to plug in and sign.
Ready to get started? Talk to a verified expert → - get a transparent, all-inclusive quote for your Digital Signature Certificate within one business hour.
DSC cost in India
DSC pricing depends on the certificate type (signature-only vs combo), validity period (1, 2, or 3 years), and whether a new USB token is required.
KanoonPe offers a flat, all-inclusive quote - covering the certificate fee, e-KYC/video verification support, and, where needed, the USB crypto token, so there are no surprise add-ons at checkout.
Timeline
| Stage | Typical time |
|---|---|
| Application & document submission | Same day |
| Aadhaar e-KYC & video verification | Same day |
| Certificate generation & token download | Same day to 1–2 working days |
Validity and renewal
A DSC is issued for 1, 2, or 3 years, as chosen at the time of application. It must be renewed before expiry to avoid a break in your ability to sign e-filings - an expired DSC cannot sign documents and must go through fresh e-KYC verification to reissue. We recommend renewing at least 2 weeks before expiry to avoid last-minute filing delays.
Penalties and risks of not having a valid DSC
- Filings get blocked - MCA, GST, and income tax portals reject e-forms that require a DSC if none is attached or the certificate has expired.
- Missed statutory deadlines - annual ROC filings, GST returns, and tax audit reports needing digital signature cannot be submitted on time without an active DSC, risking late fees and penalties under the respective Acts.
- E-tender disqualification - bids submitted without a valid DSC on tendering portals or GeM are rejected outright.
- Compromised security - using an expired or improperly issued certificate exposes filings to authentication failures and rejection.
Class 2 vs Class 3 DSC
| Feature | Class 2 (discontinued) | Class 3 (current) |
|---|---|---|
| Status | Discontinued from 1 January 2021 | Only class issued in India today |
| Assurance level | Lower identity verification | Higher assurance, in-person/video-verified identity |
| Accepted for | Was used for basic filings | MCA, GST, income tax, e-tendering, GeM, trademark filings |
| Issuance | N/A | Aadhaar e-KYC + live video verification |
Why choose KanoonPe
- Transparent flat pricing - one all-inclusive number covering certificate and token.
- Filed-on-time or refund - every order ships with a written SLA.
- One accountable case owner - a single named manager guides you through e-KYC and issuance.
- Live status tracking - track your DSC application in real time.
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