Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Raj Shankar (2 April 1947, Gorakhpur, India-22 August 2000), was an Indian biochemist. His main fields of specialization were neurobiochemistry and clinical biochemistry. His contributions on neurochemistry are well recognized and he had been invited to deliver lectures in various prestigious conferences.Shankar studied developmental neurobiology with special emphasis on malnutrition during the brain growth spurt. His work clearly established that undernutrition during brain development causes some irreversible changes. In 1991, work carried out in Texas and Yale with Magnetic Resonance Imaging by other workers confirmed some of the conclusions of Shankar''s work. Work done during last few years of his life on developing brain show that signal transduction mechanisms are affected due to nutritional stress during brain development.