Order of the National Green Tribunal in the matter of Mahesh Chandra Saxena Vs Central Pollution Control Board & Others dated 31/05/2019 regarding groundwater recharge by Delhi Jal Board (DJB) and Delhi Development Authority (DDA), Public Works Department (PWD) Delhi, New Delhi Municipal Council (NDMC), South Delhi Municipal Corporation (SDMC) through rain water harvesting structures being not scientific and resulting in contamination of groundwater.