A leader from the Trinamool Congress has threatened to chop off the hands of Congress workers if they tried to damage hoardings of Chief Minister Mamata Banerjee. "If you (Congress workers) beat up Trinamool supporters and tear flags and posters of our party and Mamata Banerjee, then our supporters will cut off your wrists," Anubrata Mandal, the Birbhum district president of the Trinamool Congress, said while addressing a party programme in Burdwan district's Katwa area in West Bengal.