Islamabad: Pakistan Prime Minister Imran Khan said that his government will make all-out efforts for the development of Karachi, Dawn reported.

The premier said the Centre will do whatever it can for the city's progress keeping in mind the limitations posed by the 18th Amendment.

"When Karachi goes up, entire Pakistan goes up; when Karachi faces a slowdown, it affects the whole Pakistan," said Khan.

He said all important megacities of the world including London, Paris, Mumbai, Tehran and others have highly developed metropolitan systems with elected mayors and cabinets and an effective system of revenue collection, Radio Pakistan reported.

He said it was impossible to develop Karachi from provincial development funds alone, as evident from the best management practices adopted worldwide.