CPM Chief Prakash Karat has complained to President Pranab Mukherjee about the Bengal Governor who criticised the Left after West Bengal Chief Minister Mamata Banerjee was heckled in Delhi on Tuesday.PromotedListen to the latest songs, only on JioSaavn.comHere's the full text of the letter:Also Read"Left-BJP Nexus...": Mamata Banerjee Accuses Rivals Of RG Kar Hospital VandalismTrinamool Leader Who Questioned Kolkata Hospital Removed From Party PostMamata Banerjee Leads Rally Demanding Death Penalty For Rape-Murder Guilty