Indian Association of Soil & Water Conservationists
Website: http://www.iaswc.com
Association of Environmental Analytical Chemistry of India (AEACI)
Website: http://www.aeaci.org/
National Environmentalists Association
Website: http://www.neaindia.org/
Association of Hydrologists of India (AHI)
Website: http://www.appliedhydrology.org
Indian Association of Hydrologists (IAH)
Website: http://www.nih.ernet.in/iah.html
National Solid Waste Association of India (NSWAI)
Website: http://www.nswai.com
Indian Water Works Association
Website: http://www.iwwa.info