Kolkata Folk Art — 2 museum-grade prints on the theme. Kachni — from the Hindi word for fine line — is the Madhubani tradition associated with Kayastha women painters who built form through dense parallel hatching, cross-hatch, and stippling inside bold double black outlines, distinct from Brahmin Bharni flat colour floods and Dusadh Godna tattoo dot grammar. On classical walls Kachni rendered bamboo, fish scales, peacock feathers, and manuscript page fields; on paper it became the line discipline of villages like Ranti and Jitwarpur after the 1960s famine-era transfer from mud-wall ritual to market craft. Bharni — from the Hindi word for filling — is the Brahmana women's Madhubani tradition of saturated flat colour within bold lampblack outlines, historically distinct from Kayastha Kachni parallel hatching and Dusadh Godna tattoo stipple. Where classical Bharni served deities, peacocks, fish, and wedding-procession scenes on interior walls, contemporary Mithila painters have absorbed trains, cityscapes, and urban street life; master artist Avinash Karn's The Joy in the City placed a Kolkata tram inside Madhubani grammar on canvas, extending a fusion lineage this print continues in open-edition poster form.