An ethnographic approach to the South Indian festival Ayudha Puja reveals that the celebration plays a role in the construction of scientific communities. Ayudha Puja has the ability to absorb westerners, non-Hindus, and non-Brahmins into Indian science and engineering communities and is thus widely practiced in South Indian industry and academia. The practice of Ayudha Puja thus parallels what M. N. Srinivas labels “Sanskritization.” Within India, the process of Sanskritization refers to the adoption of high-caste habits and diet by upwardly (...) mobile lower-caste communities. While not actually an example of Sanskritization, participation in Ayudha Puja is analogous to that process: by joining a Hindu rite within the scientific and professional workspace, outsiders become part of local laboratory, department, or office culture. Such practices reveal the need for scholars to investigate scientific community building outside the domain of how scientists reveal new facts about the world. (shrink)