The Mumbai police's Anti-Narcotics Cell (ANC) has busted a drug trafficking racket by apprehending four persons and seizing mephedrone worth over Rs 25 lakh from them, an official said on Wednesday.

Based on a tip-off, the Ghatkopar-unit of the ANC laid a trap at Shivaji Nagar area in the eastern suburb of Govandi here and nabbed two of the accused on July 8, the official said.