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                     Class 3 Digital Signature 
Certificate (DSC)
Secure, Authenticated & Legally Valid Digital 
Transactions in India
The Digital Transformation Imperative
India's Digital Journey
As India accelerates toward a 
paperless economy, secure online 
transactions have become mission-
critical for businesses, professionals, 
and government entities.
Digital Signature Certificates serve as 
the foundation of trust in this 
ecosystem, enabling authenticated, 
tamper-proof digital interactions.
What is Class 3 DSC?
Highest Security Level Licensed Authorities
Top-tier digital signature Issued exclusively by 
certificate with maximum authorized Certifying 
encryption strength Authorities under IT Act
Identity Verification
Stringent in-person validation ensures authentic document signing
Why Class 3 DSC is Essential
01 02
Government Mandate E-Tendering Compliance
Required for all MCA, ROC, GST, and income tax e-filings Mandatory for participating in government and corporate 
e-procurement
03 04
Legal Validity Trust & Authentication
Fully recognized under IT Act 2000 with same weight as Eliminates fraud risk and establishes undeniable document 
handwritten signatures integrity
Types of Class 3 DSC
Individual DSC Organization DSC Sign & Encrypt DSC
Personal digital signature for Corporate certificate for company Advanced certificate enabling 
individual professionals, CAs, CS, filings, authorizing multiple both document signing and 
and business owners designated signatories secure email encryption
Major Applications Across Industries
Income Tax & GST MCA/ROC Filings
E-filing returns, GST registrations, and tax Company incorporation, annual returns, and 
compliance documentation corporate governance documents
E-Tendering IP Filings
Government and private sector bidding, Trademark, patent, and intellectual property 
procurement, and contract management registration applications
DGFT & Trade Legal & Regulatory
Import/export code applications, IEC filings, and Court filings, regulatory submissions, and 
foreign trade compliance compliance documentation
How Class 3 DSC Works
PKI Encryption
Public Key Infrastructure generates unique key pair for 
authentication
USB Token Storage
Private key stored securely in hardware token, never exposed 
to systems
Two-Factor Auth
Password-protected access ensures dual-layer security for 
each transaction
Digital Verification
Recipient validates signature authenticity using public certificate
Key Benefits
Unbreakable Security Time Savings
256-bit encryption and hardware-based protection Instant document signing eliminates physical 
against tampering verification and courier delays
Paperless Workflow Platform Agnostic
Complete digital documentation reduces costs and Compatible across Windows, Mac, Linux with standard 
environmental impact compliant applications
Who Needs Class 3 DSC?
Corporate Entities
Companies, LLPs, and partnerships for MCA, ROC, and compliance 
filings
Financial Professionals
Chartered Accountants, Company Secretaries, and tax consultants for 
client work
Government Contractors
Vendors and suppliers participating in e-tendering and procurement 
portals
Trade Professionals
Import/export businesses, DGFT applicants, and foreign trade 
operators
Essential for India's 
Digital Future
2
Year Validity
Standard certificate duration requiring renewal
The Digital Imperative
Class 3 DSC is no longer optional—it's the cornerstone of secure, 
legally valid digital transactions in India's growing digital economy.
For professionals and businesses alike, Class 3 DSC is the gateway to 
seamless, authenticated digital interactions across government and 
corporate ecosystems.