Banasura Sagar Dam - India's Largest Earthen Dam in Wayanad

The construction of the Banasura Sagar Dam began in 1979. It was built as a part of the Indian Banasura Sagar Project, primarily to support the Kakkayam hydroelectric power plant and to address the water demands for irrigation and drinking in the region, especially during periods of drought. The dam is constructed entirely from large stones and boulders, making it the largest earthen dam in India and the second largest in Asia. It was named after Banasura, a mythological king from local legends, and the nearby Banasura Peak.

The primary significance of Banasura Sagar Dam lies in its engineering. It is the largest earthen dam in India, constructed using natural materials like stones and soil. This unique construction makes it a point of interest for both tourists and engineering enthusiasts. For the region, it is a vital source of water for power generation and agriculture. For visitors, it has become one of Wayanad's most popular destinations, known for its scenic reservoir with submerged islands and recreational activities like boating, which provides a distinct experience compared to other dams.