A Sri Lankan passenger has been arrested at Bandaranaike International Airport (BIA) after Customs officers seized 7.5 kilograms of ‘Kush’ cannabis with an estimated street value of Rs. 75 million.The 41-year-old suspect, who arrived from Bangkok this morning, was intercepted while attempting to pass through the airport’s Green Channel, where the narcotics were found concealed in 12 airtight packets inside his luggage.The suspect and the seized drugs have been handed over to the Police Narcotics Bureau for further investigations.