Islamabad, Oct. 20 -- As the joint opposition movement held its second rally on Oct 19, a visibly upset and angry Prime Minister Imran Khan told a conference of his supporters in Islamabad that he would get "tougher" with the opposition leaders and put them all behind bars.

"Come back and see where I put you," he said in reference to exiled former prime minister and PML-N leader Nawaz Sharif, at whom he largely directed his ire. "Now I will try my best to bring you back and put you in common prison, not VIP."

Khan told his supporters that the 11-party Pakistan Democratic Movement's (PDM) thrust was to create a rift between his government, the judiciary and the army.

"I will not let that happen," said Khan, who also made fun of PML-N vice...