Manchar Lake (Sindh Pakistan) is one of Asia’s big lakes collecting the run off from mountain areas esp from Balochistan. Besides it is fed by toxic discharge of the Main Nara Valley Drain that removes excess water from towns and intensely cultivated upstream land. This year with the heavy rainfall and floods in the catchment the lake is bursting at the seems. Cuts have been made to release the pressure. These releases have submerged the Indus Highway between Kotri and Larkana, one of Pakistan’s lifelines.