Pakistan Tehreek-i-Insaf (PTI) Chairman Imran Khan on Saturday said that he will now go after PPP co-chairman Asif Ali Zardari as his struggle to pursue the alleged corruption charges against Prime Minister Nawaz has almost reached a conclusion.

While addressing his supporters in Sindh's Badin district, Imran regretted that he could not visit the province earlier as he was focusing on pursuing alleged rigging in the 2013 general elections.

"I spent a year on this issue," the PTI chief said, adding the Panamagate case verdict "has revealed the true face of Nawaz Sharif".

"Now the prime minister is stuck with the joint investigation committee. Asif Zardari, I am coming after you," the PTI chairman said as his supporters cheered him on.

"He has ruled over Sindh using politics of fear," he alleged, adding that Zardari owns sugar mills in the province yet "the poor farmer who grows sugarcane is unable to get his rightful earning".

"He has property everywhere. Is he really sympathetic to your suffering?" Imran said, casting doubt over Zardari's loyalties to the people of Sindh.

"Nawaz Sharif built his empire in Punjab while Zardari built his in Sindh. There, Nawaz rigged the election, here Zardari rigged the polls," he alleged, claiming the two leaders are taking turns and have secretly agreed as to how they will rob the country of its resources.

"Both have money abroad. Both are involved in money laundering," Imran claimed, urging voters to demand an explanation from Zardari and ask him to explain how he acquired his assets.