Kolkata murder-rape case: Main accused gave 'false and unconvincing' answers to CBI's polygraph test

CBI’s investigation into the Kolkata rape-murder case involved a polygraph test on suspect Sanjay Roy, which revealed unconvincing answers. Additional tests were conducted on former RG Kar Medical College principal Sandip Ghosh. The case involves the rape-murder of a woman doctor, prompting widespread protests and thorough searches and interrogations by CBI.