Which river in India is associated with the Sivasamudram Falls?

Option A (“Krishna”) is incorrect because it does not match the river basin, lake type, location, tributary relationship, project or hydrological feature specified in the question. Option C (“Tungabhadra”) is incorrect because it does not match the river basin, lake type, location, tributary relationship, project or hydrological feature specified in the question. Option D (“Sharavathi”) is incorrect because it does not match the river basin, lake type, location, tributary relationship, project or hydrological feature specified in the question. Therefore the correct option, index and explanation consistently identify Kaveri. The Sivasamudram Falls is located on the Kaveri River at Sivasamudram island in Karnataka. The river here splits into two channels around the island and then plunges as waterfalls. The Sivasamudram hydroelectric power station here was one of Asia's earliest hydroelectric plants, established in 1902.