This document discusses the history and concepts of organ donation in India. It outlines key milestones in organ transplantation, including the first successful kidney, heart, lung, and pancreas transplants. It notes the large gap between the number of organs needed annually versus the number of transplants performed. The document defines organ donation and distinguishes between living donors, cadaver donors, and organ donation before and after death. It also explains the concepts of brain death and cardiac death. Finally, it discusses challenges around awareness of brain death and the need for government funding and interest to strengthen organ donation programs.