Centre has informed that about 300 polluted stretches have been identified on 275 rivers in the country. Minister of State for Water Resources Sanwar Lal Jat said in Lok Sabha yesterday that 302 polluted stretches have been identified based on Bio-chemical Oxygen Demand levels, which is a key indicator of organic pollution. <br/><br/>He said, the pollution load in rivers has increased over the years due to rapid urbanisation, industrialisation and discharge of untreated water on account of inadequate treatment facilities.