In this Monday, July 15, 2019, photo, colorful vessels lie in wait to be filled with drinking water from a water truck in Chennai in Southern Indian state of Tamil Nadu. Demand for water in India???s Motor City, a manufacturing and IT hub on the Bay of Bengal, far outstrips supply, forcing authorities to take extreme and costly measures to deliver potable water to its residents. Chennai???s water board is employing an army of trucks to deliver 500 million liters of water a day since desiccated reservoirs and fast-diminishing groundwater forced the city to ration public tap water to millions of users for months. (AP Photo/Manish Swarup), APTOPIX