Interior minister Nisar Ali Khan had announced last week that military will remain here from August 1 till October end, under article 245 of the Pakistani constitution.
Article 245 which deals with the functions of the armed forces states says that "armed forces shall, under the directions of the federal government, defend Pakistan against external aggression or threat of war, and, subject to law, act in aid of civil power when called upon to do so".
The government's decision pitted it against the Opposition parties, which termed it as the failure of Nawaz Sharif led civilian government, which took charge last year after the first-ever peaceful democratic transition.
It is feared that the government will expand the deployment and handover the security of other cities to the armed forces.
Key opposition Pakistan People's Party has announced to raise the issue in the parliament on Monday.