CBI conducts second round of polygraph tests on RG Kar hospital ex-principal, others

According to an officer, over the last 10 days, Ghosh provided inconsistent answers during questioning, prompting officers to conduct another round of polygraph tests. The CBI initially conducted the lie-detection tests on Ghosh and five others on Saturday, followed by a test on arrested accused Sanjay Roy at the Presidency Correctional Home on Sunday.