Kolkata biryani is often identified by its distinctive addition of a large, tender potato, sometimes accompanied by a boiled egg, alongside fragrant rice and meat. But for natives of Kolkata, there is no single version that defines the city’s biryani. Driven by a craving for authentic flavours, a group of Pune-based Bengalis is coordinating large-scale air-cargo shipments of iconic Kolkata biryani and traditional sweets to the city.