City Nazim Karachi Syed Mustafa Kamal on Tuesday filed a writ petition in Sindh High Court against the directives of Chief Minister Sindh on the sale and lease of property, reports a private TV channel. City Nazim, by his counsel Dr Farogh Naseem former Advocate General Sindh, has pleaded the court to declare the CM directives invalid, saying that he was being restricted from performing his duties by the provincial government.