Gilani, who consistently argued that he could not take action against Zardari as he enjoyed immunity under the constitution, finally quit June 19.
Political groups held mass rallies in support of the court action.
However, Gilani's stepping down soon took a backseat in public discourses after the appointment of his successor Raja Pervez Ashraf.
The year saw US drone attacks turn into an emotive issue for Pakistanis, and the anti-drone clamour only got louder as the Americans intensified the missile strikes in the tribal areas.
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