Water insecurity is defined as the lack of a reliable source of water, of appropriate quality and quantity to meet the needs of the local human population and environment. As economic development continues, water consumption increases - and thus this is becoming a long-term cause of water insecurity. Pakistan is already the third most water-stressed country in the world. Its per capita annual water availability is 1,017 cubic meters - perilously close to the scarcity threshold of 1,000 cubic meters. Back in 2009, Pakistan's water availability was about 1,500 cubic meter. Pakistan ranks nine in the list of top 10 countries with lowest access to clean water where 21 million of the total population of 207 million does not have access to clean water. We need efficient and integrated management of water in view of its increasing demands visa-vis depleting reserves. God has created this commodity according to the requirements of mankind. However without management, it is not sustainable.