Answer
Tungabhadra River's land was acquired by Krishnadevaraya, the ruler of the Vijayanagara Empire, in 1512. This acquisition was a significant strategic move, as it gave Krishnadevaraya control over the fertile lands along the river's banks and allowed him to expand his empire's agricultural production. The Tungabhadra River also served as a natural boundary between the Vijayanagara Empire and its rivals, providing an additional layer of protection for Krishnadevaraya's kingdom.