Agaya Gangai waterfalls are located in Kolli Hills of the Eastern Ghats, in India. Panchanathi, a jungle stream, cascades down as the Agaya Gangai (English: Ganges of Sky), near Arapaleeswarar temple atop the Kolli Hills in Namakkal district, Tamil Nadu. It is a waterfall of the river Aiyaru. It is located in a mountain valley.