The ECP had initiated contempt proceedings against Imran Khan and former PTI party leaders Chaudhry and Asad Umar for allegedly using 'intemperate' language against CEC head.
Interior Minister Rana Sanaullah said that Khan planned the countrywide violence that erupted after his arrest in a corruption case on May 9.
Jahangir Khan Tareen (JKT) is leading the group of leaders who left Khan's Pakistan Tehreek-e-Insaf (PTI) party in the wake of attacks on military installations last month.
Security agencies across the country have detained thousands of workers of the Pakistan Tehreek-e-Insaf party in connection with the attacks on military installations after Khan was arrested.
Khan, 70, who appeared before the ATC Lahore amid high security, reiterated that he faces "serious threats" to his life.
The former Punjab chief minister's arrest comes amidst the powerful establishment's efforts to break the party of Khan.