On 13 February 2010, Hizb ut-Tahrir Wilayah Pakistan organized a large rally in Pakistan's financial centre and home to over 20 million, Karachi. This was despite the US agent Zardari's security forces turning hundreds of protestors away, harassing them and demanding their identity cards.

The rally protested against the American judiciary's verdict against the Pakistani neuroscientist, Dr. Aafia Siddiqui, after torturing for five years and depriving her of her children; pronouncing our Muslim daughter guilty of an act she never committed.

The demonstrators carried banners and placards inscribed with slogans such as:  "O Pak Army! Avenge Aafia, Establish Khilafah "Caliphate", end US presence".  They demanded from the Armed Forces of Pakistan to provide Nussrah  to Hizb ut-Tahrir for the re-establishment of the Khilafah "Caliphate", which will end all American presence in Muslim Lands and rise as a shield to stop the brutalities against Muslims.