What is a Class 3 Individual DSC?
The Highest-Security Digital Signature for Individuals
A Class 3 Individual Digital Signature Certificate (DSC) is an electronic identity credential issued to an individual person — not a company — under the IT Act 2000 and CCA (Controller of Certifying Authorities) guidelines.
It works like a physical signature but in digital form. When you sign a document or a government portal form with your DSC, it proves that you — and only you — signed it. It is tamper-proof, legally valid and accepted on every Indian government e-portal.
Class 3 is the highest security level available. It requires in-person or video-based identity verification (Aadhaar eKYC) — making it trusted for high-stakes transactions like tax filings, MCA registrations and government tenders.
Legal validity: A DSC issued by a CCA-licensed Certifying Authority (like eTrust, SpeedSign, VSign) has full legal standing under the Information Technology Act, 2000 (Section 3 & 5). It is mandatory — not optional — for many government filings.
- Type: Class 3 Individual (Signing)
- Authority: CCA-Licensed CA (eTrust / VSign / SpeedSign)
- Validity: 1, 2, or 3 years
- Storage: USB Token (Proxkey / HYP ePass)
- Format: X.509 Digital Certificate
- Algorithms: RSA 2048-bit / ECC
- Class 2 DSC is discontinued by CCA since 2021
- Class 3 is now the minimum required standard
- Accepted on all portals — Income Tax, GST, MCA, Tender
- Aadhaar-based video KYC — stronger identity proof
- Issued in 15 minutes at BBD Bagh
Your DSC is stored on a USB pen-drive (token) that you plug into your computer. The private key never leaves the token — making it impossible to copy or steal. Common brands: Proxkey, HYP ePass, Watchdata.
Class 3 Individual DSC Is Mandatory For
If you use any Indian government e-portal for official filings, this DSC is either mandatory or strongly recommended
Where Your Class 3 DSC Will Be Used
One DSC — accepted on all these portals. No separate DSC needed for each use.
Class 3 Individual DSC — All Validity Options
All prices exclude GST (18%). Token is optional — reuse your existing Proxkey or HYP ePass for free.
Walk-in at BBD Bagh or Apply Online
Both options give you the same quality DSC — choose based on your preference
What You Need to Apply
Minimal documents. Can be shared via WhatsApp for online applications.
Why 50,000+ Clients Chose Our BBD Bagh Centre
Our DSC Centre vs Online Agents
Know what you're getting before you decide
Visit Us or Request a Free Callback
Walk in anytime — or fill the form and our Kolkata team calls you back within 10 minutes
HMP House, 4 Fairlie Place
Near RBI Building, BBD Bagh
Kolkata – 700001