“[Ganesh] Devy, a former professor of English from the western state of Gujarat, launched the People’s Linguistic Survey of India in 2010. … With single-minded ambition, he put together a team of 3,000 volunteers from all parts of the country. Since 2013, the PLSI has published 37 volumes, featuring detailed profiles of each of India’s languages. The project is expected to be completed by 2020 with 50 volumes.” Sunaina Kumar reports on how Devy and his team do their work and what they’ve discovered.