Addressing thousands of protesters in the heart of the federal capital, the Pakistan Tehreek-e-Insaf chief demanded formation of a new fully independent election commission and vote verification in four constituencies his party has pointed out before.
He presented a 9-point charter of demands that aims to make the election process free and fair.
Though there was a large gathering at the event, it did not match the hype that surrounded the whole event. Khan had claimed it would be a "tsunami" of people this evening.
Just a few kilometers away, Pakistan Awami Tehreek (PAT) chief Tahirul Qadri held a rally in Rawalpindi which he addressed through video. Qadri is based in Canada.
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Meanwhile, demanding reconstitution of the election commission, Khan said those responsible for "35 punctures" must not be made part of the new EC.
He also demanded that overseas Pakistanis be given the right to vote as per Supreme Court orders.
Incidentally, his supporters also carried banners against Geo TV, which the party has boycotted over its alleged support to "rigging".
Strong security arrangements were made for the rally.
The police had sealed access to the sensitive Red Zone that houses all government installations and even the Diplomatic Enclave, with containers.
Paramilitary Rangers and Punjab Elite Force commandos guarded the zone.
Similarly, a 3,500-strong police contingent and police helicopters were also put into action.