In a letter to Jayalalithaa, the party convenor G K Nagaraj said the underground water level in Kongu region, comprising 12 districts, had already gone below 1,000 feet.
Moreover, of the 570 water bodies, 500 had already become arid and waiting for water, particularly in Coimbatore, Tirupur and Erode Districts, he claimed.
The project if implemented would not only benefit the farming community, but also fulfill the drinking water needs of the several people, he noted.