B.S. Guha

Biraja Sankar Guha (1894–1961) was a pioneering Indian physical anthropologist, trained at Harvard University under Roland B. Dixon and Earnest Hooton, who became the founding Director of the Anthropological Survey of India (AnSI), established in 1945. He is best remembered for the racial classification of the Indian population he prepared for the 1931 Census of India, published in the census report's ethnographic volume (1935). Working within the prevailing diffusionist and typological paradigm of early twentieth-century anthropology, Guha applied anthropometric methods — measuring cephalic index, nasal index, stature and skin colour — to sort India's peoples into discrete "racial" stocks, a project that for decades shaped how the Indian subcontinent's human diversity was conceptualised in administrative and academic discourse.

Guha's scheme identified six principal racial elements: the Negrito, the Proto-Australoid (or Austric), the Mongoloid (divided into Palaeo-Mongoloid and Tibeto-Mongoloid), the Mediterranean (with Palaeo-Mediterranean, Mediterranean proper, and Oriental sub-types), the Western Brachycephals (comprising the Alpinoid, Dinaric and Armenoid), and the Nordic. He associated the Proto-Australoid with the bulk of India's tribal populations, the Mediterranean with the Dravidian-speaking peoples and the builders of the Indus Valley Civilisation, and the Nordic with later Indo-Aryan-speaking migrants. This classification, alongside the earlier work of Herbert Hope Risley (the 1901 Census, with his seven racial types and reliance on the nasal index), formed the canonical "racial map" of India taught for generations.

Modern genetics and physical anthropology have thoroughly discredited the typological "race" framework on which Guha worked; population geneticists today speak of ancestral components (such as Ancestral North Indian and Ancestral South Indian) rather than fixed races, and the very concept of biological race is treated as a social construct lacking scientific validity. Nonetheless, the Anthropological Survey of India that Guha founded remains an active institution headquartered in Kolkata, and its later flagship People of India project (launched 1985 under K.S. Singh) shifted the discipline decisively toward ethnographic and community-based study. Guha's institutional legacy thus far outlasts the racial taxonomy that made his name.

For the UPSC Civil Services Examination, Guha appears squarely in the General Studies Paper I "Indian Society" segment and in the Anthropology optional. Aspirants are expected to know him as the author of the 1931 racial classification, to contrast him with Risley, and — critically — to deploy him as evidence of how colonial-era anthropology applied now-rejected racial categories to the subcontinent. The typical question angle asks candidates to discuss the diversity of the Indian population, the scientific obsolescence of racial classification, or the evolution of the Anthropological Survey of India; a strong answer cites Guha's six-fold scheme, names the 1935 publication, acknowledges its methodological flaws, and frames the modern genetic consensus that India's diversity reflects layered migration and admixture rather than discrete races.