The method of collecting the colours was particularly fascinating, especially to the schoolchildren who were asked to get involved in the project. Mohit Kumar, 11, recounts how they would set out early in the morning in search of different colours. “We got brown from cow dung and golden brown from cow dung mixed with hay. We extracted pale yellow by scrubbing together lemon rinds. We raked up leaves and ground them with stones for different shades of green and crushed petals of flowers to get pink and red,” he says, his eyes shining as he breathlessly recalls the sources of their palette. “There is also black from homemade kajal, blackish brown from various soils and mud.” Then, everyone eagerly joined in the hunt for saffron—extracted from a red-orange clay found in parts of Bihar, Bengal, Jharkhand and Orissa, known as ‘ranga mati’ (red earth). It’s also used by sadhus to dye their clothes. “This was not easily available in these parts of Bihar, so the artists would gather them from the roadsides in case there was any spilled from trucks and cars transporting them from place to place,” says a teacher.