The Kawai fish carrying heavy metals like lead and cadmium are entering the Chambal River from the polluted areas of the Yamuna River and are posing threat to the gharials of National Chambal Sanctuary areas falling in Madhya Pradesh. Locals say that the gharials who eat Kawai fish suffer from liver cirrhosis. It is learnt that a large number of Kawai fish are heading from the Yamuna River to the Chambal. Two years back, nearly 100 gharials had died of a similar disease in the Chambal River areas, falling in Madhya Pradesh and Uttar Pradesh. According to scientists, lead and cadmium are found in these fish, which damage the liver of the amphibians, who pray on it. The Yamuna and Chambal confluence is situated at Bharet near Etawah from there, the Kawai fish are heading towards the Chambal river. The Superintendent of Devri Gharial Centre, SC Bhadauria, on the issue, told The Pioneer that a survey would be conducted and it would be detected that in what amount, this fish is available and where. After that further corrective measures would be taken for safeguarding the fish. He added that the specialists would be consulted in this connection and some remedy or some way would be taken out to avert any threat to the gharials. The Chief Conservator of Forest, Gwalior, Ram Prakash, said that no gharial has died due to the recent problem with Kawai fish, but he failed to clarify as to how the matter came to light.