KARACHI: Tehreek-e-Insaf chief Imran Khan has challenged all the political parties to unite and contest against his party.

"Tehreek-e-Insaf cannot be defeated even if all the political parties jointly contest against it," he claimed while addressing his party workers in Karachi on Sunday.

"Nobody can withstand the Tsunami of Tehreek-e-Insaf," he said.

The PTI chief said he would transform Pakistan into such a country where people from other nations would come in search of employment.

He also claimed that his party will bring an end to drone attacks "The new Pakistan will not bow to any superpower," he said.