Jailed former prime minister Nawaz Sharif's Pakistan Muslim League-Nawaz with 64 and former president Asif Ali Zardari's Pakistan Peoples Party with 43 seats are placed at number two and three respectively, the Election Commission of Pakistan said.
PTI spokesman Fawad Chaudhry said that they have the required numbers to form government.
A single party will need at least 137 of the directly elected seats to be able to form the government on its own.
Before the elections, concerns have been raised in the country over the participation of hardline Islamist groups in large numbers.
Counting has begun for the election which will be the second democratic transition of power in the nation's 70-year history.
Decision will be taken in second democratic transition of power in the nation's 70-year chequered history.
Sharif, the PML-N prime ministerial candidate, said that Pakistan cannot become a great nation by voting leaders like Imran Khan who have made false promises to "our nation".
The EU too urged Pak to ensure "safe and secure conditions" for the polls.
The court also refused to suspend the conviction in the case until the appeals were decided.
Police said PML-N leaders and workers have been booked for taking the rally in violation of law.
The two were convicted on July 6 in the Avenfield properties case linked to the Sharif family's ownership of four luxury flats in London.
Pakistan's memorial will be in response to pleadings filed by India in the Hague-based ICJ on April 17.
The court delivered the verdict after postponing it for four times in the Avenfield corruption case -- pertaining to the ownership of four flats in the posh Avenfield House in London.
The placement on to grey list could hurt Pakistan's economy as well as its international standing.
Currently placed on the FATF'S 'grey list', Pakistan has been scrambling in recent months to avoid being added to a list of countries deemed non-compliant with anti-money laundering and terrorist financing regulations by the FATF.
The JuD will contest the election on the platform of a little known "dormant" political entity, Allaha-u-Akbar Tehreek.
The decision was taken after the ECP again dismissed the MML's application for registration on Wednesday.
The interior ministry had opposed enlisting of the MML as a political party, arguing that it is an offshoot of the banned JuD.
The JuD, a front for the Lashkar-e-Tayiba militant group that carried out the deadly 2008 Mumbai attack, launched its political front Milli Muslim League, but it has not been yet registered with the Election Commission of Pakistan. With general elections approaching, the group decided to contest on the platform of a "dormant" political entity, Allaha-u-Akbar Tehreek, which is registered with the ECP.
Mulk, 67, is likely to be sworn in on Friday, June 1.
