New Delhi, Jan 13 (UNI) The Supreme Court on Tuesday said all cases related to alleged violence during the Special Intensive Revision (SIR) of electoral rolls in West Bengal will be heard together on January 19, after responses are received from the parties concerned. A bench comprising Chief Justice of India Surya Kant, Justice Joymalya Bagchi, and Justice Vipul M. Pancholi made the observation after a lawyer mentioned the issue before the court, referring to a counter affidavit which reportedly acknowledged at least six incidents of violence in the state.