The Supreme Court is hearing the petition filed by CBI challenging the Calcutta High Court order allowing the house-arrest of four Trinamool Congress leaders- Firhad Hakim, Madan Mitra, Sovan Chatterjee and Subrata Mukherjee- in the Narada scam case.A vacation bench comprising Justices Vineet Saran and BR Gavai is hearing the case.Stay on this page for live updates from the hearing.