The CBI has grilled Indrani's daughter Vidhi Mukerjea and her husband Peter for 4 hours. According to sources, Vidhie was asked to identify the mails she had allegedly received from Sheena's email ID. It has been discovered during investigation that Indrani was impersonating herself as Sheena after her death. Vidhi was also asked if her real father, Sanjeev Khanna had made attempts to meet her on 24 April 2012.