MQM and the Mayor is still waiting to receive a mandate from the provincial government. All power lies with the PPP in Karachi.
Up until around 2015, the de-facto Mayor slash Don of Karachi was Altaf Bhai, and Liyari gangs were his revenue department.
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Only in the land of pure:
> Pakistan: Karachi mayor to run office from prison
https://www.aljazeera.com/news/2016/08/pakistan-karachi-mayo...