Kolkata doctor's murder: Main accused Sanjay Roy undergoing lie detection test at Presidency Jail

A team of CBI left Kolkata Presidency Jail on August 25 after CBI came earlier here for polygraph test of Sanjay Roy. Sanjay Roy, the prime accused in the case, was to undergo a polygraph test by the CBI in the jail itself. #kolkatadoctorcase #supremecourt #sandipghosh #doctorprotest