Acting on a tip-off, officials of the Narcotics Control Bureau (NCB) intercepted the passenger at the customs examination area, an NCB statement said.
A search of his baggages revealed that he possessed 10.450 kg of ketamine and 730 gram of ephedrine, used in party drugs.
NCB sleuths confiscated the contraband packed in 20 silver foils and five transparent polythene packets, it said.
He was arrested and produced before a court which remanded him to judicial custody.