The average annual per capita availability of water in India is estimated to be 1117 m³ in 2014, making India water stressed. Almost 70% of India's surface water resources are contaminated by various toxic, biological and other pollutants because of the lack of adequate infrastructure for wastewater management. Sixty percent of groundwater sources have problems either with availability or quality or both. These water quantity and quality issues are having a significant bearing on the environment, ecology and health of India's population. It is pertinent to note that about 1.3 billion Indian people live in 2.4% of the world's geographical area.