Kolkata doctor rape-murder: Ex-RG Kar head Sandip Ghosh's polygraph responses are 'deceptive', says CBI
Kolkata: The polygraph responses of Sandip Ghosh, the arrested former principal of Kolkata's RG Kar Medical College and Hospital where a 31-year-old trainee doctor was raped and murdered last week, are "deceptive", said the Central Bureau of Investigation, media reports said.