Khan is set to take oath as prime minister on August 11. A party needs 137 seats for a simple majority.
Pakistan's Supreme Court on Wednesday suspended a recount in a National Assembly constituency in Lahore where Pakistan Tehreek-i-Insaf chief Imran Khan had narrowly defeated a Pakistan Muslim League-Nawaz candidate in the July 25 general elections.
While the ECP withheld his victory notifications from two constituencies, it declared him victor from three others from where he contested, subject to the decision of a pending litigation against him over alleged violation of the election code of conduct.
Though the election Commission's statement did not explain the nature of the violation that led to some results being withheld, it apparently referred to the violation of the secrecy of the vote due to the stamping of ballot papers in a constituency in Islamabad on the table of the presiding officer, instead of voters going behind a screen.
Rafique's lawyer contended that a recount request is valid if the victory margin is less than 5%, PTI reported.
The PTI's strength in the National Assembly or Lower House with 272 directly elected members has gone down from 116 to 112 and the tally of its ally, the Balochistan Awami Party, has gone from four to three.
According to the ECP, the notification was issued in the light of Supreme Court orders.
The bench observed that the result of NA-131 has been compiled the constituency could not be deprived of representation in Parliament. It asked Rafique's lawyer to approach the relevant election tribunal.
Soon after the apex court's verdict, Khan's lawyer Babar Awan wrote to the poll panel, requesting it to issue the notification of Khan's victory in two seats in Lahore and Islamabad.
In his application, Mr Awan argued that since the apex court had nullified the high court's judgement, the ECP should issue the victory notification of Khan.
The Election Commission of Pakistan withheld the notification of results after the Lahore High Court on August 4 ordered a recount of votes for the constituency.