The Customs Intelligence and Investigation Directorate (CIID) detained a passenger with over 1.6kg of gold at Shah Amanat International Airport in Chittagong on Wednesday.
The identity of the detained passenger could not be known.
Airport Director Group Captain Taslim Ahmed said flight FZ-0563 from Dubai landed at the Shah Amanat InternationalAirport at 10:45am.
Tipped off, they came to know that an air passenger brought gold from Dubai illegally in a bag, the director said.
The passenger hid the gold inside a large lock and a battery for an electronic charging light by coating lithium on the gold plate in the bag, he said.
A total of 1.619kg of gold was recovered from the bag of the passenger, he added.