Setu-Samudram unifies prepared lectures, live presentations, and Exam management. Unlike laggy video streams, it uses high-fidelity state sync for pixel-perfect annotations and zoom/pan. Standout features include: "Invigila" mode for integrated exam management, a unique "Tapes & Notes" preparation layer for strategic info reveal, and a dedicated dual-screen Receiver View. Built by a teacher, it ensures zero-latency, high-impact learning across any device.