"The investigation is at a crucial stage and the accused are influential persons and there is every possibility of tampering with the evidence if they are let on bail," Special Judge for CBI cases Krishnamoorthy said in his order.
The judge dismissed the bail pleas of Gowthaman, and two Sun TV officials S Kannan and K S Ravi who were arrested on January 21 in connection with alleged allotment of more than 300 high-speed telephone lines to the former Telecom Minister's residence in Chennai which were extended to his brother's TV channel.