Punjab Chief Minister Muhammad Shahbaz Sharif has ordered crackdown against those who are selling substandard and cheap Iranian coal-tar for the construction of roads and directed that indiscriminate actions should be taken under the law against such elements. He said that no leniency will be shown to those who are using substandard and cheap Iranian coal-tar in the construction of roads. In this regard instructions issued by the government. The Chief Minister has appreciated the performance of DCO Mushtaq Ahmed, meanwhile, he met Chief Minister in Islamabad today and informed him about the actions taken against those who are selling substandard and cheap Iran coal-tar.