A valid Digital Signature Certificate (DSC) is mandatory for KPPP portal login and bid submission. The Karnataka eProcurement system uses DSCs to ensure security and authenticity. Understanding DSC usage avoids last-minute submission issues. Tender18 guides bidders on DSC requirements linked to KPPP tenders. https://tender18.com/blog-details/KPPP-Karnataka-Public-Procurement-Portal-Tenders-Complete-Process