Kolkata doctor rape-murder case: Prime accused Sanjay Roy undergoing lie detection test at Presidency Jail

Sanjay Roy, the main suspect in the alleged rape and murder of an RG Kar Medical College trainee doctor, is undergoing a lie detection test at Kolkata's Presidency Jail. Two other individuals are scheduled for testing at the CBI office in Kolkata. Four people, including former principal Sandip Ghosh, had polygraph tests on Saturday.