The area which has the biggest problem in clean drinking water at present is "Mexico City." There's a blog that presents how Mexico is suffering now in lack of source of water in the country. Each drop of water is big heroic tragic. Mexico's source of water is located in <span>Cutzamala located 120 kilometers from the Federal District. It is the largest reservoir system of Mexico.</span>
The high growth of population in Terai region is because of migration from mountain and hill , growth of the population in the Terai region itself and immigration from outside i.e. from other neighbouring countries
