Dumping of garbage, including plastic and thermocol, industrial effluents and poultry waste continue to affect the 737-year-old Kalingarayan canal in Erode district.
The 90.5 km. long canal helps in irrigating 15,743 acre located on both the sides of the canal from Bhavani to Kodumudi.
Kalingarayan Canal was constructed by Kongu chieftain Kalingarayan in 1283.
The canal's source is the Kalingarayan Dam near Bhavani, Erode.
The canal connects Bhavani and Noyyal rivers, two major tributaries of the Kaveri.