RG Kar case: CBI questions close aide of arrested ex-principal Sandip Ghosh

CBI sleuths on Saturday started questioning another doctor, allegedly close to arrested former principal of RG Kar Medical College and Hospital Sandip Ghosh, in connection with their probe into the rape and murder of a woman doctor at the medical establishment, an officer of the agency said. Birupaksha Biswas, who was recently transferred by the West Bengal Health Department from Burdwan Medical College and Hospital to remote Kakdwip hospital in South 24 Parganas district, appeared before officers of the Central Bureau of Investigation (CBI) at its CGO Complex office in Salt Lake area. Biswas, allegedly part of a 'North Bengal lobby' operational in medical colleges, was seen at RG Kar Hospital on August 9, when the body of the woman medic was found, the CBI officer said. The 'North Bengal lobby' is being referred by medics in West Bengal to a group of doctors and officials posted at state-run medical establishments who allegedly threatened students. "He is being questioned about hi