KARACHI: The Supreme Court on Wednesday took notice over substandard construction of Karachi-Hyderabad M-9 project and performance of National Highway Authority over lack of maintenance of Sehwan-Jamshoro road leading to a large number of traffic accidents.Hearing the NHA's appeal against Sindh High Court’s judgment that ordered up-gradation of road and removal of toll tax, the SC’s three member bench headed by Justice Gulzar Ahmed observed that the highway authority should be ashamed of...