Sopan Joshi is a journalist and author in New Delhi. For about 25 years he has researched, written, and edited for a variety of publications, in English and Hindi. The first, titled ‘Jal-Thal-Mal’ (‘Water-Land-Excreta’; 2016), is a product of 10 years of research on the history and science of sanitation, seen from a social and environmental perspective. He is the author of ‘Ek Tha Mohan’ (‘A Boy Called Mohan’, 2017) and ‘Bapu Ki Pati’ (‘Bapu’s Message’, 2018)