PATNA, Aug. 31 -- Bihar water resources department (WRD) engineers and the district administrations of the areas traversed by the Gandak, Kosi and other major rivers originating from Nepal kept close surveillance on Sunday in view of the fear of another flash flood in Nepal. This heightened vigil follows the devastating glacial collapse and ice-rock avalanche near the Nepal-Tibet border earlier this week, which triggered catastrophic flash floods and mudslides that sent torrents down river systems including the Bhote Koshi and Trishuli, eventually feeding into the Gandak that enters Bihar. Authorities have remained on high alert for any secondary surges or related upstream risks, which was feared earlier in the day. According to the WRD's daily flood information bulletin, the overall flood situation in the state remains under control. Most of the rivers are in spate due to rainfall in Nepal catchments and residual effects from the recent upstream events, but they are generally flowing near the danger level or have jumped past the red mark only slightly at certain points. The Gandak was flowing above the danger level at Dumariaghat in Gopalganj, recording around 62.50 metres against a danger level of 62.22 metres with a steady or slight rising trend, while levels at Chatia in East Champaran, Rewaghat in Muzaffarpur and Hajipur in Vaishali stayed below the danger mark, showing falling or steady trends. Barrage discharges at Valmikinagar continued to be carefully managed. P3...