Rahul Sir ali confine hunu bhayo jasto lagyo. The valley has the size of 250 sq. miles, and due to precipitation it gets plenty of water all round the year. So trapping the surface water makes sense. Also, we should not forget the fact that Bagmati is not a snow-fed river and reservoir at Sundarijal collects more rainwater from the northern catchments. In other word, we had relied on rainwater and it had worked wonderfully in the past. The other significance of surface water is the recharging of groundwater, and we all know groundwater is depleting day by day in the valley. A ‘safe’ groundwater level is essential in the valley in the sense it helps in to maintain the moisture level of surface and subsurface soils to the required amount, which is vital for plants and the crops. The other significance of groundwater is that all the Dhungedharas rely on groundwater flow, and dhungedharas ta cultural heritage pani ho...sanskritic dharohor....much needed... Ani Rahul Sir, Sthapit ko malai purai background tyati ramro sanga thaha bhayena...tara politicians at times do state bizarrely. However, unlike of Sanskrit trained Narahari Acharya who used to address on constitution most often, having been trained as Overseer, Sthapit is still qualified to understand and speak on some of engineering technicalities. ani maile kehi kura boleku chu bhane afno academic ra experience le support garne bhara boleku chu....