A landslide that may have blocked a tributary is a possible cause of flash flooding in the Budhi Gandaki river, the Department of Hydrology and Meteorology’s Flood Forecasting Section said on Sunday.Binod Parajuli, a hydrologist at the section, said satellite images showed a large landslide near Chumchet in Chumnubri Rural Municipality, Gorkha district. The landslide is believed to have occurred on Saturday. “We are examining satellite images. A large landslide is visible around Chumchet. It app...