This move has given Khan, a strong critic of Sharif, another opportunity to hit out at the incumbent government as his party is all set for the protest of Islamabad on November 2.
Prime Minister Nawaz Sharif, addressing a public rally in Kohat on Friday, said the opposition is afraid of seeing Pakistan progress because it would render their politics irrelevant.
They were carrying party flags and Imran Khan's portraits while chanted slogans "Go Nawaz Go", "Nawaz should resign" and others.
Sources from the Information Ministry said Rashid stepped down until the inquiry confirms whether he was the source for an explosive story detailing a top-level meeting at which security services were accused of assisting armed groups in Pakistan. "Actually his and Modi's agenda is same", he said.
Imran also said Sharif and his brother Punjab Chief Minister Shahbaz Sharif were using the whole state machinery to save a corrupt prime minister.
On Sunday, police blocked almost 1,500 of Khan's armed supporters from entering the capital, the interior minister said.
Alvi further said during the last three day entire nation has witnessed difference between democracy and dictatorship.
The federal government, he said, was following a high court decision and the government would avert a confrontation at any cost, adding PTI wanted to paralyse the federal capital but the federal government will not let them [PTI] do it.
Comparing his movement to the current unrest in South Korea's Seoul, where the president has been asked to step down, the PTI chief tweeted, "In Seoul despite lockdown of city no containers or police brutality".
Khan, a former cricketing hero, has threatened to "lock down" Islamabad on Wednesday to force Sharif to accept an inquiry into the affair. The report said that earlier this month, a PTI official had shared a video on their Facebook page showing Imran's gym routine and captioned it: "Kaptaan's lifetime of training for this very decisive moment, it's been a long time coming????!"
"One million people will come out in Islamabad day after tomorrow".
Heavy contingents of police have been deployed on various roads leading to Islamabad while transporters had been warned against facilitating the Pakistan Tehreek-i-Insaf supporters.