Few years back, Mumbai's Dabbawala appeared as a successful business case study, which was studied by the Harvard Business School (HBS). This time, Harvard University's South Asia Institute takes deep interests in the Kumbh Mela, the largest human gathering on the earth around the confluence of rivers Ganga, Yamuna and the mythical Sarasvati at Allahabad during a particular season. Subsequently, HBS Case Collection included cases namely 'Kumbh Mela: India's Pop-up Mega-City' (2013) and 'Government and the Minimalist Platform: Business at the Kumbh Mela' (2013) for the scholars and practitioners. The book titled "Kumbh Mela: Mapping the Ephemeral Megacity", co-published by Harvard University's South Asia Institute, and edited by Rahul Mehrotra and Felipe Vera, gives the readers the inter-disciplinary perspectives from the social scientists, management strategists, public policy analysts, urban planners, and public health experts. Many of the key observations made in this book are based on ethnographic studies by a group of senior scholars from the Harvard University. The chapter authors not only elaborated and evaluated the infrastructural facilities made available during the Kumbh Mela period; they also appraised the spiritual affinity of the pilgrims who pay a visit to the pop-up city. The photo essays and individual portraits of pilgrims are a testimony to the happiness of the believers and public service providers. This book is a nice read for the South Asian scholars studying spiritual experiences of the pilgrims, and the uniqueness of the Indian civilizations.