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Smooth-coated otter Lutrogale perspicillata is one of the three otter species occur in Nepal. They were believed to be extirpated from central and eastern Nepal. Camera traps set to study fishing cats in the buffer zone area of Koshi Tappu Wildife Reserve recorded smooth-coated otters, confirming their presence in the protected area. Single individuals of smooth-coated otter were recorded at two locations in three detections. The recorded locations lie at the elevated edge of Typha elephantina dominated swamps, created from the Koshi River seepage near the Koshi embankment. Regular monitoring and conservation efforts for the smooth-coated otter are needed to ensure their survival in Koshi.