Explore the fascinating realm of black holes in this comprehensive lecture, part of a summer course on neutron stars and black holes. Delve into the theoretical foundations of black holes as described by General Relativity, presented by renowned physicist G. Srinivasan from the Raman Research Institute. Learn about the formation, properties, and behavior of these enigmatic cosmic objects. Gain insights into the latest research and discoveries surrounding black holes, including their role in shaping the universe and their potential implications for our understanding of space-time. Enhance your knowledge of astrophysics and cosmology through this in-depth exploration of one of the most mysterious phenomena in the universe.