The National Green Tribunal has expressed concern over the use of potable or drinking water in cricket fields and directed an expert committee to submit report on steps to save water.The order came on a plea filed by an NGO Friends alleging that Delhi and District Cricket Association was using RO-treated water for the upkeep of Feroz Shah Kotla ground and power distribution company TPDDL was wasting 7,500 litres of water per day through the RO water plants it installed at 31 educational institutions. RO water for cricket