Kolkata (West Bengal) [India], August 19 (ANI): The CBI has received permission to conduct a polygraph test on the arrested accused in the Kolkata rape-murder case, as per CBI sources. On August 18, the CBI team investigating the rape and murder case of a trainee doctor examined and conducted 3D laser mapping in the emergency ward of RG Kar Medical College and Hospital in Kolkata. The rape and murder of the trainee doctor have sparked widespread outrage and protests across various cities, with calls for justice and punishment for the accused. The Supreme Court has taken suo motu cognizance of …