Biography of Subhramanyan Chandrashekhar Subrahmanyan Chandrashekhar was an astrophysicist and Indian scientist who was awarded the Nobel Prize in 1983. He received the Nobel prize for his contribution to the study of physical processes necessary for the structure and evolution of stars. His most famous discovery was that massive stars could collapse under their own gravity to reach infinite densities. These collapsed stars are known as neutron stars or black holes, as we may call them today.