When devotees pray to Ganesha before beginning a task, they are invoking the blessings of Siddhi and Buddhi. To worship him is to seek the removal of obstacles and invite success.

Walk through, and the city morphs. Lanes shrink. Dharavi, once branded a slum, now gleams on real estate flyers. But inside its labyrinth, where the city keeps its secrets and its sewage, no one ...