A Class 3 Digital Signature Certificate (DSC) is the highest level of digital authentication used in India for secure online transactions and document signing. It provides strong identity verification and is widely required for e-tendering, e-procurement, e-bidding, and other high-security government or business activities. Types of Class 3 Digital Signature 1. Signing Certificate 2. Encryption Certificate 3. Combo Certificate Uses of Class 3 Digital Signature Certificate Class 3 DSC is widely used for: e-Tendering and e-Procurement e-Bidding and e-Auction Trademark and Patent e-Filing MCA and ROC filings GST and Income Tax filings Secure PDF and document signing Who Can Apply? Class 3 DSC can be obtained by: Individual professionals Company directors and authorized signatories Partnership firms Private and public limited companies Foreign applicants (with required documents) Applicants must submit identity and address proof and complete verification before issuance. With the growing shift toward digital governance in India, Class 3 DSC has become an essential tool for businesses and professionals.