Water resources which are potentially useful to humans and the rest of the world, are not only important for the existence of life on earth but also for ensuring sustainable development of the world, as their effective and sustainable management is effectively linked to various sectors of our economy including the industrial, agricultural, power, fisheries, recreational and environmental, transportation, domestic and household sectors. The resources and the services provided by them have benefited both people and their economies for many centuries, yet in many countries people lack the basic drinking water and sanitation needs. Therefore, management of water resources has become a critically important issue for their future use, for their protection from overexploitation and pollution and for the prevention of disputes over water bodies. It is the proper planning, development, and management of water resources both in terms of quality and quantity across all water uses which include the infrastructure, policies, protocols, incentives, information, and institutions for its proper guidance and support.