Chandigarh, Feb. 4 -- Arrested in the 2.5 crore bribery case, Shimla ED assistant director Vishaldeep and Delhi CBI DSP Balbir Singh were produced in the court by the investigation teams on Monday. The CBI court of special judge Alka Malik granted permission to take voice samples of accused Vishaldeep and Balbir Singh. The voice samples of both the accused will be matched with the call recording provided by the complainant....