Dhwani Pandya Bhuma Shrivastav Bloomberg

When government official Kiran Dighavkar heard that a 56-year-old man who'd recently died in the Mumbai suburb of Dharavi had tested positive for Covid-19, he knew his next moves would determine the trajectory of the outbreak in India's commercial capital.

When government official Kiran Dighavkar heard that a 56-year-old man who'd recently died in the Mumbai suburb of Dharavi had tested positive for Covid-19, he knew his next moves would determine the trajectory of the outbreak in India's commercial capital.