In this episode of Frontline Conversations, author Sunil Tambe, discusses his Marathi book Monsoon Jan Gan Man, which argues that the monsoon—not religion, language, or ethnicity—is the true binding force of the Indian subcontinent. In a political moment dominated by hyper-majoritarian nationalism, Tambe suggests that understanding India requires understanding the monsoon: its ecology, its rhythms, and the civilisations it has shaped. Tambe traces how monsoon-dependent water cycles structured India’s social and economic life. He explains how caste emerged as an adaptive system of resource distribution, how Arab- and China-driven maritime trade fostered coastal cosmopolitanism and religious tolerance, and how monsoon-linked agrarian abundance powered empires from the Cauvery delta to Southeast Asia. As climate change disrupts rainfall, glaciers, coastal lines, and livelihoods across Pakistan, Bangladesh, and India, he warns that monsoon nationalism—not religious nationalism—might be the more urgent political idea for our era. Highlights How the monsoon acts as South Asia’s centripetal cultural force Why caste evolved from ecological constraints and resource adaptation How monsoon winds created cosmopolitan coasts, trade networks, and religious pluralism The monsoon logic behind India’s two agricultural seasons and festival calendars Why the Cauvery delta’s dual monsoons fuelled Chola expansion into Southeast Asia How new states increasingly align with IMD’s monsoon subdivisions Students of environmental history, anthropology, and South Asian studies Researchers studying caste ecology, maritime trade, and climate politics Policy analysts examining state formation, hydrology, and resource conflicts Readers curious about the cultural and political logic of the monsoon Perfect for Credits Host: Amey Tirodkar Camera: Emmanuel Jackkie Karbhari Editing: Razal Pareed Producer: Mridula Vijayarangakumar Originally published on November 22, 2025 Subscribe to Frontline: https://frontline.thehindu.com/online... #monsoonjanaganaman #suniltambe #frontlineconversations #monsoonnationalism #southasia #maritimetrade #casteecology #indianmonsoon #climatechange #cauverydelta #cholaempire #southasianhistory #environmentalhistory #imd #monsoonsubdivisions #indianfestivals #coastalcosmopolitanism #maritimeindia Follow us on: Facebook -   / frontlineindia   Twitter -   / frontline_india   Instagram -   / frontline.magazine   LinkedIn -   / frontline-magazine-b12921295