Subject(s): Water Treatment plant -- Local Governance -- Grama Panchayat -- Safe drinking water distribution model -- Handbook/kaipusthakam -- Water purification and development, decentralized planning -- Documentation of innovative developmental practices of local governments : water treatment plant odayammadam -- Sudhajala vithranam: Mathrukayayi Odayammadam -- ശുദ്ധജല വിതരണ : മാതൃകയായി ഒദയമ്മാടം -- കൈപ്പുസ്തകം