Justice Retd. Mir Hazar Khan Khoso on Monday took oath as the sixth caretaker Prime Minister of Pakistan.
The oath was administered by Pakistan´s President Asif Ali Zardari.
Former Prime Minister Raja Pervez Ashraf, former speaker of the National Assembly Dr Fehmida Mirza, several political party leaders, military officials, bureaucrats and diplomats attended the oath-taking ceremony that was held at the President House here.
Khoso said he will resign in case he fails to hold the elections on time.
The Election Commission on Sunday selected Khoso as the caretaker Prime Minister to conduct the general election in the South Asian nation on May 11.