The Central Bureau of Investigation (CBI) has summoned Narreddy Rajasekhar Reddy, the son-in-law of former minister YS Vivekananda Reddy, in connection with his murder case. Rajasekhar Reddy was questioned by the CBI three days ago and has been summoned again for further questioning. The CBI is investigating the murder case of YS Vivekananda Reddy and Rajasekhar Reddy's involvement in it. Sunitha, the daughter of late YS Viveka, also recorded her statement before the CBI. The agency is trying to gather information regarding a letter that Viveka is believed to have written. They are investigating why the letter was hidden until the evening. The CBI is gathering details about the murder of Viveka and the subsequent developments.