and Hindu scholar of Indian origin. Kollagunta Gopalaiyer Ramanathan (1920-1992), Indian mathematician . S. Ramaseshan (1923-2003), Indian physicist and biographer known for his work on crystallography . Former director of Indian Institute of Science . Nephew of Sir C. V. Raman and cousin of Subrahmanyan Chandrasekhar. S. R. Ranganathan (1892-1972), library