The Narmada river, central India’s mightiest, has been deliberately killed in its last stretch, with grave consequences for farmers, village residents and especially fisher folk, allege members of Paryavaran Suraksha Samiti, a Vadodara-based non-profit. In its last 161 kms, the Narmada, instead of being a perennial river has been converted into a seasonal one, is dry and carries seawater with some industrial pollutants and untreated sewerage, has high chemical oxygen demand (COD), total dissolved solids (TDS) and low dissolved oxygen (DO) and the groundwater near it has deteriorated
— source downtoearth.org.in | 15 Apr 2019