Speaking to media here, he said tracing investment clues was next to impossible without a forensic audit.

Three of Prime Minister Nawaz Sharif’s four children are named in the Panama Papers — daughter Maryam, who has been tipped to be his political successor, and sons Hasan and Hussain — with the records showing they owned London real estate through offshore companies administered by Mossack Fonseca.

The leaked papers, comprising 11.5 million documents from Panama-based law firm Mossack Fonseca, exposes how some of the world’s most powerful people have secreted their money offshore, and also implicated Sharif’s sons Hasan Nawaz and Hussain Nawaz.

Ahsan hoped that the government would review its decision and consider the opposition’s proposal.

Read: PM’s daughter Maryam Nawaz owns a firm in UK, reveal documents

We have formulated a bill that has no discrimination, he said. “We expect the PM to present himself for accountability before the parliament.”

The PPP Senator said investigation must be held into illegal transfer of money abroad.

Government’s assistance will be required for passage of the bill from parliament.

The Panama Papers has lead to a furore in various countries around the world. It has lead to resignations of several world leaders such as Prime Minister of Iceland. Ex-British PM David Cameron also had to defend himself after the name of his father appeared in the list.