Damodar Valley Corporation, independent India’s first multipurpose river valley project, completes 75 years this week. Though this columnist could not readily trace the Damodar Flood Enquiry Committee Report, he relies on the affirmation of Saha’s colleague and biographer, Kamalesh Ray, to conclude that it was the astrophysicist who first envisaged a river planning of Damodar based on TVA, which will …