Class 3 DSC & e-Sign for MCA Filings in India
⚡  Quick Answer
Class 3 DSC (Digital Signature Certificate) A Class 3 DSC is a CCA-issued digital signature, sort of a legally required electronic signature, and it ’s needed for things like MCA company incorporation, GST, income tax, and e-tender filings in 2026. It gets tied to e-Sign via Aadhaar-based identification and OTP verification , and you can typically get it in 1-3 days through online KYC plus a video verification step.

Overview  

Electronic verification is a crucial step when incorporating a new company in India. The MCA (Ministry of Corporate Affairs) requires a Class 3 DSC and e-Sign for all statutory filings. However, avoiding or missing this critical step can lead to instant application rejection. In this guide, we will explore the Class 3 DSC definition, how it maps to e-Sign, and why it is important for the MCA V3 portal.

What is Class 3 DSC?  

A Class 3 DSC works as a strong and advanced certificate for digital authentication. It verifies the signer's authenticity. This Class 3 Digital Signature Certificate (DSC) is a type of cryptographic security regulated and issued by the Controller of Certifying Authorities (CCA). Initially, the Class 3 DSC was used for GST purposes, tax returns, and the MCA portal. The new amendment was enacted on 1st January 2021. CCA decided to stop issuing Class 2 DSC. In 2026, securing the Class 3 DSC has become mandatory for MCA filings. GST filings, e-tendering/DGFT/income tax.

In short, it acts like an electronic version of your physical signature. Class 3 DSC should be used for any individual or business while submitting important documents on government portals. It not only digitally proves who you are, but it also makes sure that the documents you sign online are legally binding and secure.

Note: Class 3 DSC is issued for a period of 1, 2, or 3 years. This digital certificate can be renewed either before or on expiry, with a validity of 1 to 3 years. If applied after its expiry, you need to complete the full documentation and verification process.

How Does Class 3 DSC Link with e-Sign?

A Class 3 Digital Signature Certificate (DSC) links with e-Sign primarily by serving as the underlying permanently stored identity. It generally authenticates the identity of the user. Here is how a digital certificate links with e-Sign:

  • Class 3 DSC Application: To verify the identity, users use their Aadhaar card while applying for Class 3 DSC.
  • Link Between DSC and e-Sign: When generating a Class 3 DSC, the licensed certifying authority (CA) uses Aadhaar details and applies them to the digital certificate.
  • The e-Sign Setup: The users are asked to e-Sign the electronic declaration form using an Aadhaar OTP. The verification is required to authorize DSC approval.

Who Requires a Class 3 DSC?

Class 3 DSC is recognized as one of the most secure levels of digital signature. This digital signature is used by a wide range of users, especially newly registered entities. Here is a categorization of who mandatorily requires a Class 3 DSC:

Company and LLP Directors

The registered companies that are subject to filing forms and annual returns mandatorily need to use Class 3 DSC on the Ministry of Corporate Affairs (MCA) portal.

Business Owners

The companies and LLPs that compulsorily need to file GST and income tax returns should use this digital certificate for a high security level.

Contractors and Bidders

Use it while submitting secure bids on the government e-procurement and e-tenders portal (like GeM or IREPS).

Exporters and Importers

Used by a wide range of importers and exporters who engage with the Directorate General of Foreign Trade for a license or customs documentation.

Trademark/Patent Applicants

Secure way to sign and submit an intellectual property application digitally.

How to Get a Class 3 DSC (Digital Signature Certificate)?

Class 3 DSC offers the highest level of data security in India. The digital certificate is used for multiple reasons, e.g., for online filing of GST, MCA, income tax, e-tendering, and ICEGATE. Here is the stepwise process on how to apply for Class 3 DSC:

Step 1: Select a Licensed Certifying Authority (CA)

First, choose an Authorized Certifying Authority (CA) by browsing the platform of a  Controller of Certifying Authorities (CCA)-licensed issuer. Select the one for which you are applying for the Class 3 DSC. For personal e-filing, choose "Individual"; otherwise, select "Organization" if you want the certificate for firms, companies, etc. Further, choose the certificate type between "sign only" or "combo" (sign + encrypt).

Step 2: Complete Application & KYC Selection

The process of KYC verification is straightforward and only requires the user's name, mobile number, and email address.

  • Option A: For verification, applicants can use their Aadhaar number. On the registered contact number, you will receive the One-Time Password (OTP). Once you enter the OTP, the system automatically fetches all details like name, photo, and address information.
  • Option B: If you use a PAN, you need to enter all the information manually.

Step 3: Verify the Documents

In case you are registering an organization's DSC and didn't use Aadhaar eKYC, you must upload clear and accurate scanned copies. The category of DSC determines which document exactly you need to provide.

  • Individual: For identity proof, the applicant uses a PAN card, a passport, or a voter ID. Meanwhile, an Aadhaar card, bank statement, or utility bill can provide for address proof.
  • Organization: For identity proof, the signatory's PAN card and address proof. Meanwhile, supporting corporate documents include the company incorporation certificate, the organization's PAN card, GST certificate, board resolution, or authorized signatory.

Step 4: Pay Fee & Video KYC Verification

Use any payment gateway to pay for the mandatory digital signature certificate in India. In video recording verification, you are only required to record a live video for at least 20 to 30 seconds. Hold your original Aadhaar/PAN, state your name, and read the dynamic code in front of the camera. The video-KYC web link will be sent via email/SMS. To validate ownership, enter the independent verification codes received via SMS.

Step 5: Download Certificate for USB Token

For high security purposes, DSCs are usually issued on USB tokens (hardware). Use the application ID and password to securely download the cryptographic private keys.

Step 6: Associate the DSC on the MCA Portal

You can only link a Class 3 DSC on the MCA portal when it has successfully downloaded onto your USB crypto token. Once the certificate is linked to the Ministry of Corporate Affairs (MCA) portal, applicants are eligible to sign or upload the forms, like SPICe+, AOC-7, or MGT-7.

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Common Pitfalls That Delay 2026 Company Registration

Often, users face rejection during company incorporation via MCA's SPICe+ forms on the V3 portal. The process is completely online, but still, a small error or technical glitch causes instant application rejection. The major DSC-related pitfalls include:

Mistake 1: Name Mismatch

The mismatched name across all documents, like on the PAN card, Aadhaar, DSC, or DIN, causes instant application rejection on the MCA portal. For example, if your name is Rajesh Kumar Sharma on the Aadhaar card, but it is written only Rajesh Kumar on the PAN card, that causes serious concern while applying for DSC.

  • Solution: Before applying for a Class 3 DSC, one must first update the names on the PAN card and the Aadhaar card. All details, name, DOB, and address must be the same in all documents.

Mistake 2: Outdated eSigner Drivers

It is required for DSC while signing documents on MCA/GST, but it causes failures due to background processes and outdated versions.

  • Solution: To avoid such mistakes, download the current emSigner (v3.0 or newer). It can be downloaded from the MCA V3 portal. In case the DSC token is not detected, you can try a different USB port.

Mistake 3: Invalid or Expired DSC

Usually, a DSC is valid for 1, 2, or 3 years. It must be active at the time of digital document signing; an expired token will block all corporate filings.

  • Solution: Use the Class 3 DSC, as the Class 2 DSC is not in use anymore. Link the Class 3 digital certificate on the MCA portal against the specific DIN/PAN.

Conclusion

Securing the Class 3 DSC with e-Sign is a strategic, strong, and safe digital system move that safeguards businesses' identity from theft and fraud. In 2026, Class 3 DSC provides a secure filing and a trustworthy option. Meanwhile, the major mistakes or rejection issues that arise during the digital certificate application process can be avoided professionally. It can be done by accurately checking the documents, selecting the right licensed certifying authority, and fulfilling verification requirements. Businesses can protect their sensitive information and crucial document details by using Class 3 DSC, a strong foundation for compliance and credibility.

Applying for Class 3 DSC in India? JustStart helps businesses and individuals to get the digital certificate easily and hassle-free. They provide end-to-end guidance and technical team support so that businesses can focus on business operations and growth rather than being stuck in compliance formalities. For more queries, visit https://juststart.co.in/ and get professional CA, CS, and advocate support.

Frequently Asked Questions

Q1. Can I use Class 2 DSC for company registration in 2026?

Ans. No, you cannot use the Class 2 DSC because the Controller of Certifying Authorities (CCA) permanently discontinued it. Instead of a Class 2 DSC, you can use the Class 3 DSC for MCA filings.

Q2. What are the documents required to apply for a Class 3 DSC with e-Sign?

Ans. The type of documents for the DSC application in India depends on whether you are applying as an individual or an organization. However, the major documents include identity proof, address proof, recent photographs, and an active contact number.

Q3. Is it mandatory to have a Class 3 DSC for all directors of a company?

Ans. Yes, for official corporate filing in India, the directors of registered companies are required to have a Class 3 DSC. But it is not mandatory for all directors, but only for those who act as authorized signatories.

Q4. Is physical presence mandatory for Class 3 DSC KYC verification?

Ans. No, it is not mandatory to physically present for verification. Under the guidelines from CCA in India, the verification process can be completed via a secure video KYC from any location through a phone or laptop.

Q5. What if my name on DSC mismatches with PAN or DIN?

Ans. The Ministry of Corporate Affairs (MCA) portal or income tax site will reject the filings in case the name is mismatched. Therefore, it is important to match names across all documents.

Q6. What is the cost of Class 3 DSC in India?

Ans. The basic cost of a Class 3 Digital Signature Certificate (DSC) is between Rs 850 and Rs 4,500 in India. However, the exact amount depends on its validity period and the purpose for which you need it: a basic signing or a combo (signing + encryption).

Q7. What is the timeline to get the Class 3 DSC in India?

Ans. The standard process to get the digital certificate typically completes in 1 to 3 working days. The process of Aadhaar e-KYC and video verification completes in 20 minutes or a few hours.

Q8. How do I know if my DSC is Class 3?

Ans. All DSCs issued after 2021 are Class 3, not Class 2. Because a Class 3 certificate holds higher security, it's accepted everywhere. Only Class 3 DSC is applicable for company registration, e-tender, or CA filing.

Q9. How long can a Class 3 DSC be used by corporate entities?

Ans. A Class 3 DSC cannot be used for longer than 3 years, even for corporate entities. The new corporate entities get the digital certificate for at least 1, 2, or 3 years.

Q10. Can a foreign director apply for a Class 3 DSC for an Indian company incorporation?

Ans. Yes, foreign directors can apply for or get the Class 3 Digital Signature Certificate (DSC), but they require additional verification.

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