Chennai metropolitan area

Metropolitan Area in Tamil Nadu, India

Greater Chennai Metropolitan Area, or simply the Chennai Metropolitan Area (CMA), is fourth-most populous metropolitan area in India and the 35th most populous in the world. The CMA consists of the core city of Chennai, which is coterminous with the Chennai district, and its suburbs in Kanchipuram, Chengalpattu, Thiruvallur and Ranipet districts contributes to 27% of States GDP. The Chennai Metropolitan Development Authority (CMDA) is the nodal agency that handles town planning and development within the metro area. In 1974, an area encompassing 1,189 km2 (459 sq mi) around the city was designated as the metropolitan area which was subsequently expanded to 5,904 km2 (2,280 sq mi) in 2022. Oxford Economics Global Cities Index 2024 ranked Chennai as the 4th best city in India and 472nd best city in the world.

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