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"Must Save Democracy": Mamata Banerjee, Opposition Slam '1 Nation, 1 Poll'Mamata Banerjee Names ISKCON Priest As Board Member Of Digha Jagannath Temple"Protect Minorities In Violence-Hit Bangladesh": Mamata Banerjee To Centre