The Enforcement Directorate today conducted raids at the residence of a former Chief General Manager (CGM), an executive director and a former GM of the Punjab Small Scale Industrial and Export Corporation (PSIEC), besides seeking record from the corporation’s head office here.Sources said the central agency was probing the alleged fraudulent allotment of at least 20 industrial plots in Mohali and Amritsar since 2012. Last year, the ED, in its communication to then Principal Secretary, Industries and Commerce, and the Managing Director, PSIEC, had sought details of the industrial plots allotted since 2012, the details of the inquiry conducted by the corporation or any other enforcement agency along with any FIR registered in the matter. However, the state had refused to provide details, citing investigations by the Punjab vigilance. Citing sensitivity of the matter and the ED being a central agency, the Department of Industries and Commerce has referred the matter to the Chief Secretary for necessary orders.The ED is investigating on the basis of monitoring FIR registered against PSIEC officials by the Vigilance Bureau. It had been alleged the allotments of the plots were done to benefit officials of the PSIEC.