(a) whether many environment experts and organizations like the National Green Tribunal (NGT) have been advocating the prohibition on the use of Reverse Osmosis (RO) systems owing to its role in wastage of water;
(b) if so, the details thereof;
(c) whether any other cost effective water filtration technologies are being recommended as alternative to Reverse Osmosis (RO) systems; and
(d) if so, the details thereof?