"The girls' names were Padma and Lalli, but they were so inseparable that people in the village called them Padma Lalli. Sixteen-year-old Padma sparked and burned. Fourteen-year-old Lalli was an incorrigible romantic. They grew up in Katra Sadatganj, an eye-blink of a village in western Uttar Pradesh crammed into less than one square mile of land. It was out in the fields, in the middle of mango season, that the rumors started. Then one night in the...