Water sources 2 Air Pollution 1 Aquatic organism 1 Bhiwa model 1 Biodegradable Lubricants 1 Biomedical wastes disposal and management 1 Canal seepage- Ground water regime 1 Ground water shortage 1 Heavy metal content- Periyar river 1 Household drinking water sources 1 Hydrogeology- Kerala 1 Irrigation management 1 Kerala water policy 1 Landfill leachate- Vadavathoor 1 Management of urban solid wastes in Singapore 1 Nitrate Contamination of underground water sources 1 Radioactive wastes and their impact on Human Health and Environment 1 Remote sensing-GIS-water resource development 1 River basins- Management 1 Sacred groves-kannur-floral diversity 1 Soil Pollution 1 Surface water sources - India 1 Traditional water resource 1 Underwater agriculture 1 Valapattanam river basin 1 Vembanad lake- Kumarakom region 1 Veterinary public health 1 Waste water management 1 Water Pollution 1 Water health 1