The CBI claims ex-R G Kar principal Sandip Ghosh and former Tala police station OC Abhijit Mandal tried to cover up a rape-murder as suicide through incriminating calls and videos. The investigation seeks to uncover their involvement and motives while they are in judicial custody. Their narco-analysis and polygraph tests have been denied.
RG Kar case: Calls & videos point to hush-up bid, says CBI
