Just a day after finance minister Chidambaram warned steel and cement manufacturers of tough measures if they did not desist from cartelization, government has done an extraordinary about-turn and said no evidence of such practices has come to light as yet. The extraordinary sequence played itself out within the space of a couple of days. Intervening during the debate on price rise in Lok Sabha on Wednesday, Chidambaram said cement and steel firms were "behaving like a cartel' and added that the government planned to "break this logjam'.