Order of the National Green Tribunal in the matter of Friends through its General Secretary Vs Ministry of Water Resources dated 29/06/2021.
The matter dealt with the permissibility of use of reverse osmosis (RO) system where total dissolved solids (TDS) level is below a particular threshold and where RO system destroys minerals rendering use of RO treated water harmful for human health. Further question dealt with was the undue wastage of water rejected in the process.