Rapid urbanization and industrialization has increased the water demand, which results in reduction of water source and leads to drought conditions. According to the Second United Nations World Water Development Report, if present levels of consumption continue, two-thirds of the global population will live in areas of water stress by 2025. Increasing human demand for water coupled with the effects of climate change mean that the future of our water supply is not secure. As of now, 2.6 billion people do not have safe drinking water. Added to this, there are changes in climate, population growth and lifestyles. The changes in human lifestyle and activities require more water per capita.