There are two major sources of supply of drinking water to Coimbatore City: Siruvani and Pilloor schemes. The corporation is maintaining the distribution of water supply. The entire supply of water from Siruvani is by nature of gravity whereas pumping is being done in the Pilloor scheme. A separate scheme to augment the Pilloor water supply scheme to the Coimbatore Corporation has been sanctioned under JNNURM and the works are in various stages of progress.