Bhopal, July 13 -- The Central Bureau of Investigation (CBI) is studying a report filed by All India Institute of Medical Science (AIIMS), Delhi, which conducted a second post-mortem on former actress and model Twisha Sharma to confirm she died by suicide, officials familiar with the matter said, requesting anonymity. The AIIMS Delhi medical board, which performed Twisha's second post-mortem on May 24 under the direction of the Madhya Pradesh high court, submitted its final 11-page forensic report on July 10. The report revealed that the ligature marks on the model's neck and the nylon belt allegedly used in suicide matched in the forensic test. "The skin tissue of Twisha Sharma was conformed on the belt in histopathological test that indic...