“On a breezy April afternoon in Bangalore, a young, visually impaired radio host named Jaidev sat straight-backed before a console mic at the offices of Radio Active, the city’s first community radio station. He prodded his listeners – mostly low-income workers – to take an unusual pledge: to never discard certain fruit peels. ‘You want a cheap, delicious curry?’ said Jaidev. ‘Use watermelon rinds.'”