A three member bench of the apex court, headed by Chief Justice Nasir-ul-Mulk hearing the case.
In previous hearing of the case the court had ordered appointment of a permanent CEC by October 28th.
The court rejected the plea and ordered the government to complete its consultation over the issue and appoint a permanent head of the election commission by November 13th.
During the hearing the court said that the post of CEC has been lying vacant since August 2013.
The bench also rejected the request of the Election Commission of Pakistan (ECP) seeking six to nine months time to carry out delimitation of constituencies.