Another document submitted by PTI to show Zardari's ownership of the flat.
The PTI lawmaker urged the ECP to investigate the matter, "and if proven true and accurate", disqualify and deseat Zardari as an MNA under Article 62 (1)(f).
I request you to investigate this matter and if proven true and accurate, take the appropriate action, which is disqualification/de-seating from the National Assembly as prescribed by the law and Constitution of the Islamic Republic of Pakistan in Article 62 (1)(f) of the Constitution.
Although Provincial Election Commissioner Muhammad Yousaf Khan Khattak reluctantly accepted the application filed by Sherzaman, he informed the PTI MPA that any action on the petition would be taken by the ECP's Islamabad headquarters.
Speaking to reporters outside the ECP office, Sherzaman said they also wanted the National Accountability Bureau to investigate the means used to allegedly purchase the New York property by Zardari.
Answering a question regarding the evidence submitted by him, the MPA said information regarding the ownership of properties in the United States could "very easily" be obtained online.
"Now it is Asif Ali Zardari sahib's responsibility to prove us wrong," he declared.
PPP to file disqualification petitions against PM, Vawda
Also on Thursday, the PPP filed applications in the ECP's Islamabad office seeking details of assets of Prime Minister Imran Khan and Federal Minister for Water Resources Faisal Vawda.
After a PPP delegation met with the ECP secretary, party leader Farhatullah Babar told reporters they had asked the commission to provide details of assets submitted by the premier for all elections he has contested in the past.
"The money trail of Imran Khan's properties is suspect," Babar alleged, adding that his party will prove that Khan holds undeclared properties abroad.
The PPP has also submitted applications in concerned institutions to seek details of assets owned by the prime minister's sister, Aleema Khan, and of business interests of Jahangir Tareen, a senior PTI leader.
He said the PPP will file a disqualification reference against Khan and others "based on the evidence we are gathering".
"We want everyone in the government and the opposition to be held accountable under the same law," Babar said, adding that the PPP will face all cases against it through legal channels.
With additional reporting by Fahad Chaudhry in Islamabad.