The underground water table is decreasing day by day & minute by minute. The reason is that no sincere attempt is made to replenish the ground water table with rainwater during the monsoon & other rainy days.
The Rainwater harvesting is the simple collection or storing of water through scientific techniques from the areas where the rain falls. It involves utilization of rain water for the domestic or the agricultural purpose. The method of rain water harvesting has been into practice since ancient times. It is as far the best possible way to conserve water and awaken the society towards the importance of water. The method is simple and cost effective too. It is especially beneficial in the areas, which faces the scarcity of water. We can see that the People usually make complaints about the lack of water. During the monsoons lots of water goes waste into the gutters. And this is when Rain water Harvesting proves to be the most effective way to conserve water. We can collect the rain water into the tanks and prevent it from flowing into drains and being wasted. It is practiced on the large scale in the metropolitan cities. Rain water harvesting comprises of storage of water and water recharging through the technical process
School of Management Sciences, Varanasi is practicing the Rain water harvesting in the campus, . All buildings are covered by Rain Water Harvesting System. The area of building roof is 2600 sq.mt. by which recharge potential of rain water harvesting system is 2175 cu.mtr. with 3 Rain Water Harvesting Pit/Bore well connected by Rain Water Harvesting Pipeline. The said system is operational since last 2008 and being maintained properly on annual basis by professionals.