Siruthuli is an NGO based in Coimbatore, India which works to rejuvenate the water sources in the city of Coimbatore. Siruthuli means a small drop in Tamil. It was formed in June 2003 as a trust by Coimbatore business cooperations: Bannari Amman Group of Companies, Pricol Ltd., LMW Group of Companies, ELGI Group of Companies and Sri Sankara Eye Society.
Reviving the heritage of Coimbatore vis-à-vis its traditional water management systemRainwater harvesting to harness rainwater and de-silt ponds, canals and waterways in disuse to raise the ground water levelPreventing environmental degradation by launching a drive against non-bio degradable wastesMass education programmes to provide awareness to the larger community to protect the environmentInstitutionalizing waste water management and thereby improving sanitation facilities in the communityInitiating projects for a cleaner and greener environment, like Afforestation driveTo foster inter-community relationship through a wider participation by the community to build up a strong social solidaritySince 2011 Siruthulis office is located at the Noyyal Life Centre near Ukkadam Bridge in Coimbatore. Part of the eco-friendly centre are renewable energies (Windmill and solar panel on the roof top), a roof top garden, an attached Tree Nursery and a Rain Water Harvesting Structure.
Lakes in and around Coimbatore namely, Krishnampathy, Narasampathy, Selvampathy, Kumarasamy, Kurichi Kulam and Periyakulam were desilted and deepened. A Checkdam was also built with help of government funding. With the help of the Coimbatore Municipal Corporation, 150 borewells with recharge pits and filter chambers were constructed to harvest the rainwater from roads and the open spaces.Water hyacinth was removed from Valankulam tank. Siruthuli will take up processing of 100 MT. of organic market waste daily.It also plans to plant and nurture 1000 trees and remove encroachments in Noyyal river.Amruthavarshini Award from Rotary club of Coimbatore - 2015 Bhoomijal Samwardhan Puraskar - 2008 (Ground water Augmentation Award), by Union Ministry of Water Resources 
