While rain water harvesting is a statutory requirement in some states, we at CRN follow practices to conserve and reuse water in all our projects. An example is the recycling of treated water reclaimed from the sewerage for the water cooled HVAC chillers in TCS, Sholingalnallur or the use of treated water in the flushing system at Cognizant, Thoraipakkam. The balance recycled water is used for landscaping creating a zero discharge system and solid wastes from the system are organic in nature and suitable for use as fertilizer.