Buy DSC Renew DSC Reissue DSC Download DSC Certificate Status Record Video Partner Login Login eKYC A/c
Home About Digital Signature Certificate Document Signer Certificate Hardware Security Module PKI Tokens SSL Certificates Repository White Paper Download CRL CCA Guidelines Videos Customer Service Downloads Career Become a Partner Pricing Contact
08 Aug 2026

How to Apply for a Class 3 Digital Signature Certificate Online: A Complete Guide

How to Apply for a Class 3 Digital Signature Certificate Online: A Complete Guide

In today's digital economy, verifying user identity and securing critical online transactions are top priorities. Whether you are a business owner registering a new company, a contractor submitting e-tenders, or an individual filing income tax returns, a Class 3 Digital Signature Certificate (DSC) is legally required under the Information Technology Act, 2000. It guarantees the integrity and non-repudiation of your signed electronic records.

With the transition towards paperless governance, the Controller of Certifying Authorities (CCA) has implemented modern standards that make obtaining and using your digital identity faster and safer than ever. In this comprehensive guide, we'll explain everything you need to know to buy a digital signature online, complete paperless verification, and download your certificate securely.

What is a Class 3 Digital Signature Certificate?

A Class 3 Digital Signature Certificate is the highest level of security certificate issued by a licensed Certifying Authority in India. It is used for secure electronic transactions that require high-level trust and verification. Major portals such as MCA21 (Ministry of Corporate Affairs), GST, Income Tax, and e-procurement (GeM) mandate a Class 3 DSC for securing compliance filings and financial bids.

Unlike older Class 2 certificates (which have been discontinued by the CCA), Class 3 certificates require rigorous identity checks, including video and document verification, to ensure that the identity of the signer is thoroughly verified.

Why You Should Apply Paperless DSC Online

Gone are the days of submitting physical application forms, couriering paper documents, and waiting days for verification. Now, you can apply paperless DSC online in just a few minutes. The process is completely digitized, secure, and complies with the latest Controller of Certifying Authorities (CCA) security standards.

By choosing a secure paperless eKYC DSC verification process, you enjoy several key benefits:

  • Zero Physical Paperwork: Your identity is verified online using your Aadhaar or PAN card details.
  • Secure and Tamper-Resistant: The private key is generated and stored on a FIPS-certified USB crypto token, preventing key theft.
  • Instant Setup: You can complete the entire application from the comfort of your home or office.

FIPS 140-3 Level 3 Compliance: The New Standard

If you are planning to apply Class 3 DSC, you must be aware of the hardware storage standards. The CCA has advised that older FIPS 140-2 Level 2 certified crypto tokens will be phased out soon. Moving forward, storing your private key on a FIPS 140-3 Level 3 certified token is mandatory. Here is a quick comparison of the standards:

Feature FIPS 140-2 Level 2 (Older) FIPS 140-3 Level 3 (Mandatory)
Physical Security Tamper-evident coatings Active tamper detection and response
Key Protection Role-based authentication Identity-based multi-factor authentication
Compliance status Discontinued for new issuances from Sep 2026 Fully approved and future-ready

Step-by-Step Guide to Buy Digital Signature Online

Here is how you can get your certificate using the fastest digital signature approval system from Care4Sign:

Step 1: Select Your Certificate and Validity

Go to the DSC purchase portal and select the certificate type that fits your needs (Individual or Organization) along with your desired validity duration (1, 2, or 3 years). You can choose a Signing certificate, an Encryption certificate, or a Combo variant depending on your transactional requirements.

Step 2: Complete the eKYC Form

Fill in your basic details. Select the Aadhaar Offline eKYC option for a fully digital experience. You will upload the Aadhaar XML zip file along with your share code to instantly verify your identity.

Step 3: Perform Video Verification

Record a brief 30-second video recording using your phone or laptop camera. During the video, you will read the displayed statement clearly and show your original PAN card/Aadhaar card to the camera to complete the liveness verification.

Step 4: Get Fast Approval

Once your video is uploaded, our verification officers review your application. As an instant digital signature provider, Care4Sign reviews and approves compliant applications in minutes, so your digital identity is ready for immediate deployment.

Step 5: Download DSC onto Your Crypto Token

After approval, connect your CCA-approved FIPS 140-3 Level 3 USB token to your computer and download the issued certificate. Your digital signature is now ready to sign PDF files, returns, and e-tender bids securely!

Frequently Asked Questions (FAQs)

1. Can I use the same Class 3 DSC for GST and Income Tax e-filing?

Yes. An Individual Class 3 Signing Certificate is universally accepted across MCA21, GST portal, Income Tax e-filing, EPFO, and other central government systems.

2. What is Aadhaar Offline eKYC?

It is a secure, shareable document issued by UIDAI that contains your name, address, photo, and gender in an encrypted format. It allows certifying authorities to verify your identity instantly without paper forms.

3. Why does a PKI USB token lock?

For security reasons, if you enter the wrong PIN 3 to 5 times consecutively, the token locks itself to prevent unauthorized access. You will need to use the token admin tool or contact support to reset the PIN.

Upgrade to Care4Sign Today

Ready to secure your digital filings with the highest security assurance? Apply Class 3 DSC with Care4Sign today and experience paperless convenience, competitive prices, and fast approvals.

Back to Blog