The police were searching for the hotelier after drugs were found inside a package dispatched by him from Kathmandu to the Netherlands during a security check at Germany's Frankfurt Airport, the police said.
Mr Lari is the owner of Kathmandu's five-star Everest Hotel which was closed the building developed major cracks in the 2015 earthquakes.
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He has been operating the hotel in Kathmandu for the last 30 years.The police have filed a case for trafficking drugs against Mr Lari in the Kathmandu District Court after taking him into custody.