PTI Chairman and former prime minister Imran Khan on Thursday warned institutions to brace for "consequences" if the public mandate was "stolen" in Punjab chief minister's election on Friday, saying he wont be able to "hold back" masses if their vote was "disrespected".

He issued this warning in an address to the nation a day before the crucial Punjab Assembly session to elect the new provincial chief executive after the PTI recently won 15 out of 20 seats in the by-elections in the province last Sunday.

Imran also lambasted the incumbent Chief Election Commissioner Sikander Sultan Raja, saying his party "will never" contest general elections under the current CEC, as he called him "dishonest and anti-PTI".

He accused the CEC of being biased during Daska by-elections last year, saying that he had ordered re-polling on the seat to ensure the PTI's defeat.

"This election watchdog chief also turned a blind eye to Supreme Court orders on our plea in the Senate election case," Imran noted.

He claimed that two of only five seats the PTI lost in the recent Punjab by-polls was "because the results in the two constituencies were released late".

The PTI chief berated the CEC for postponing local government elections in Sindh under the "pretext of rains".

"Similar requests for deferring of LG polls in KP were turned down ... this CEC has taken all steps that go against the PTI," he said.

Imran said at least 130 ways of rigging could be eradicated if electronic voting machines were put to use. "But this mafia successfully blocked the introduction of EVMs."

Lahore sees late political activity night before crucial vote

Lahore was abuzz with political activity as party heads held meetings, with the province's administrative fate set to be decided in less than 24 hours.

The PTI and its key ally, Pakistan Muslim League-Quaid (PML-Q), held a parliamentary party session at a hotel in Lahore.

PTI Vice President Fawad Chaudhry said that 186 members were present at the session that was later also addressed by party chairman Imran Khan. It is pertinent to mention that 186 is the number of MPAs whose support the chief minister's candidates would have to demonstrate in the poll tomorrow.

Various posts on the PTI's Twitter account also showed rallies and gatherings of the party's supporters that were addressed by its leaders in various cities.

Meanwhile, PPP co-chairperson Asif Ali Zardari visited and held a meeting with PML-Q chief Chaudhry Shujaat Hussain at his Zahoor Elahi Road residence.