The Narcotics Control Bureau's (NCB) Mumbai zonal unit has busted an inter-state drug trafficking racket by arresting five persons and seizing drugs worth Rs 15 lakh, an official said on Tuesday.

In a four-day operation, NCB sleuths conducted raids at various places in Mumbai, Thane, and Navi Mumbai and seized more than 1,400 Codeine based Cough Syrup (CBCS) bottles and 6,000 Nitrazepam tablets from the possession of the five persons, including a woman.