The presentation discussed the objectives of ancient water management in Sri Lanka as: 1. Irrigation for food production 2. Human needs (settlement, drinking water, bathing, domestic needs etc.) 3. Rainwater harvesting systems 4. Environmental existence (flora, fauna etc.) 5. Building cities (Anuradhapura, Sigiriya etc.) 6. Urban planning 7. Basis for administrative boundaries 8. Mitigation of natural disasters (drought, flood, cyclone, epidemics etc.)