Digital Signature Certificate (DSC) is a secure digital key issued by Certifying Authorities (CA) under the Information Technology Act, 2000. It verifies the identity of the signer electronically and ensures document integrity (no tampering). DSC is mandatory for MCA filings (INC, DIR, MGT forms), Income Tax returns, GST returns, e-tendering, and various government portals. DSC comes in Class 2 (standard filings) and Class 3 (high-security/tenders) with validity options of 1, 2, or 3 years. The certificate is stored on a USB token (ePass2003, Proxkey, etc.) with PIN protection. We handle end-to-end DSC issuance including application, video KYC, token delivery, and driver installation support.