As rescue operations continue on Day 4 of the devastating floods in Nepal, the death toll has crossed 600 and more than 320 Indians remain untraceable. In an exclusive conversation with NDTV, former Nepal Environment Minister Madhav Prasad Chaulagain speaks about the alleged failure of information sharing ahead of the disaster and questions whether Nepal could have received an earlier warning from China. He explains how advance information could have given authorities more time for preparedness and evacuation, especially in the border areas.