Gopi Janki, who hails from Chennai, but is currently staying in Thane district, was intercepted last night when she was to board a flight to Kuala Lumpur.
According to Customs, Janki is a regular carrier and in the past also had gone four times to Malaysia.
“The arrested person is a housewife and lives with her family in Chennai. She has been caught with 5kg of Ketamine worth Rs 50 lakh,” an officer posted at the Chhatrapati Shivaji Airport said.
Janki is married and has a son and a daughter. She has been booked under stringent sections of Narcotic Drugs and Psychotropic Substances (NDPS) Act, he added.
