At a distance of 141 Kms from Thanjavur, 85 Kms from Trichy, 30 Kms from Namakkal & 349 Kms from Chennai, Agaya Gangai Waterfalls is located in Kolli Hills in Namakkal district.

With a height of 300 feet, this enchanting waterfall is formed on the river Aiyaru. This waterfall is located near Arapaleeswarar temple situated at a distance of around 2 Kms from Valappurnadu village. The falls are accessed by walking down the steps near Arapaleeswarar temple. There are around one thousand steps and takes around 1 hour to trek down. The upwards journey takes more than 1 hour, hence demands good physical fitness to reach the falls. This place is surrounded by beautiful valleys and mountains that offer wonderful views.

Buses are available from Namakkal to Kolli Hills.