India is the world's largest producer of milk. The country crossed the United States in total milk output during the late 1990s, largely due to the White Revolution, also called Operation Flood, launched by the National Dairy Development Board under Verghese Kurien starting in 1970. This program organized millions of small dairy farmers into cooperatives and turned India from a milk-deficient nation into the top producer in the world.
China produces far less milk than India despite its large population, since dairy farming is not as widespread there. The United States has a highly industrialized dairy sector but trails India in total volume because Indian milk output includes both cow and buffalo milk from millions of small farms. Germany is a significant dairy producer within Europe but its total output is much smaller than India's on a global scale.