The Narcotics Control Bureau (NCB), Mumbai, has seized 1.341 kg of mephedrone and arrested four persons, including a drug syndicate kingpin and his wife, following an intelligence-based operation spanning Maharashtra and Goa.

According to an official release issued by the agency on Wednesday, the operation began after actionable intelligence led NCB Mumbai to intercept a suspect in Pune on the intervening night of September 18 and 19. From his possession, officers recovered 502 grams of mephedrone, a synthetic stimulant commonly known as ‘MD’.