India, as of 2025, is home to over 1.4 billion people, officially surpassing China in population. But what this map underscores is not just the nation’s demographic weight, but the internal density that lies within. Uttar Pradesh (2.5%) surpasses the entire populations of Brazil (2.3%), Russia (1.8%), or Japan (1.5%). Maharashtra (1.4%), a single western state, equals the entire population of Mexico, while Bihar (1.3%), often overlooked in international economic discourse, contains more people than Germany.