Subject(s): Water conservation in Kerala -- Watershed based water conservation -- Importance of soil -- Soil-water conservation programmes -- Ways to improve Groundwater -- Surface water collection -- Lift irrigation projects -- How to use water thoughtfully -- Water pollution -- Block level master plan for water conservation -- Water laws in Kerala -- Role of Mahatma Gandhi Deshiya gramina thozhilurapu padhathi in water conservation -- മഹാത്മാ ഗാന്ധി ദേശിയ ഗ്രാമീണ തൊഴിലുറപ്പ് പദ്ധതി -- നീർത്തടാധിഷ്ഠിത ജലസംരക്ഷണം