Nagpur: The Enforcement Directorate (ED) on Friday conducted searches at four locations in the city, including the retail outlet of a jeweller in Itwari and the premises of a local businessman.The day-long operation concluded without any arrests.Sources said the searches were linked to findings made during an ongoing ED investigation in Raipur. Officials from both Raipur and Nagpur units of the agency were involved in the operation.The jeweller whose premises were searched had earlier figured in a gold smuggling case last year, in which the Directorate of Revenue Intelligence (DRI) had seized a significant quantity of gold being transported by train. The ED is also reportedly probing a possible hawala angle in the case.The businessman whose premises were also raided is under scanner for alleged tax evasion. His name surfaced during a previous Income Tax department raid on another Nagpur-based businessman. The tax assessment related to that case is still underway.The ED’s action sent ripples across the city’s business circles, triggering a wave of speculation.