The Central Bureau of Investigation (CBI) on Thursday continued to question Sandip Ghosh, the former principal of state-run R G Kar Medical College and Hospital, in connection with its probe into the alleged rape and murder of a medic, an official said. Ghosh appeared for questioning before the central agency for the 13th consecutive day. “Ghosh appeared before our sleuths for questioning,” an official at the central agency said.

According to sources, the former principal of the state-run hospital, where the body of the trainee doctor was recovered on August 9, has already been questioned by the CBI for over 130 hours. Following orders of the Calcutta High Court, the CBI took over the investigation into the alleged rape and murder of the postgraduate trainee doctor of the state-run hospital, from Kolkata Police.