The 'Chhotanagpur Plateau' is primarily composed of which of the following rock formations?

💡 Solution & Explanation

The Chhotanagpur Plateau is composed primarily of ancient Archaean rocks consisting of gneisses and granites, which form part of the stable Indian craton. Options suggesting recent alluvial deposits, limestone, or basaltic lava flows describe different geological formations like river plains, sedimentary basins, or the Deccan Traps respectively. This region is famously known as the mineral heartland of India due to immense reserves of coal, iron ore, and mica.