The chances of survival of the five coal miners trapped inside an abandoned quarry in Assam’s Dima Hasao district continue to diminish as dewatering operations entered the eighth day on Monday, officials said. Nine workers were trapped inside the mine in Umrangshu, around 250 km from Guwahati, on January 6 with four bodies recovered so far. The mine is being dewatered using specialised pumping machines brought in by the Oil and Natural Gas Corporation (ONGC) and Coal India.