CHENNAI: Madras High Court has rejected a plea by Kalanithi Maran and Dayanidhi Maran, asking to quash charges framed against them by a CBI court in an illegal telephone exchange case. Back in August, a CBI court had framed charges and ordered trial of former Union Telecom Minister Dayanidhi Maran and others in the case of alleged setting up of “illegal” telephone exchanges to benefit the Sun TV Network of his elder brother Kalanithi Maran during 2004-06. Special Judge R Vasanthi framed the charges over a month after the Madras High Court quashed the CBI court's earlier order discharging all accused.