Customs officials found Thangakani Mohammed carrying ephedrine, used as a stimulant, in a registered package and arrested him, sources at the airport said.
The consignment is worth around Rs 28 lakh in the international market, they added.
In a separate incident at the airport, one Sahul Hameed was detained for interrogation after he was found carrying 55 kgs of sandalwood in his check-in luggage.