Banasura Dam is the second largest earth dam in Asia and the largest in India. The dam has been constructed on Banasura Lake, situated amidst the Banasura Hills. It is believed that these hills were named after the demon king Banasura, who was the son of king Mahabali. It is a popular picnic spot which offers boating and other recreational activities. The dam was built using big stones and boulders. This dam site is also considered to be an ideal trekking point.