CHENNAI: Heated arguments were exchanged in the Assembly on Tuesday between DMK ministers and AIADMK MLAs over the opening of TASMAC outlets and the former AIADMK government’s claim of Tamil Nadu being a power-surplus State. AIADMK member S Ravi charged that power cuts were rampant in the State at present, though the previous AIADMK government had made TN a power-surplus State. In response,