According to the Ministry of Energy, the system of frequency of the national grid went down at 7:34 am local time, resulting in the breakdown.
Pakistan on Wednesday called for "stability and predictability" in Indo-Pak relations, saying governments on both sides should have the courage to withstand pressure in the wake of "unfortunate incidents" and prevent derailment of ties.
There is no proposal under consideration to give India the Most Favoured Nation status, Pakistan Commerce Minister Khurram Dastgir Khan has said.
US Central Command commander General Joseph Votel conveyed this to Islamabad during a visit last week.
Pakistan has raised objections to four power projects being built by India on the Chenab river on the ground that they allegedly violate the Indus Waters Treaty.
The ceremony was scheduled to be held on Monday, but President Alvi had refused to administer the oath to the lawmakers, compelling the government to postpone it.
Over a year after the deadline to grant Most Favoured Nation (MFN) trading status to India, the Pakistani government on Thursday declined to specify any time limit to meet the long-pending demand from here.
Pakistan-based terror groups like the Lashkar-e-Tayiba and the Jaish-e-Mohammed were named on Monday in the Summit declaration of the BRICS countries.
Pakistan on Thursday said Most Favoured Nation status cannot be granted to India at a time when there is tension on the borders.
The result is a big blow to the military establishment, revealing the limits of 'political engineering'. It reflected the anger of the electorate, especially its younger voters, who have spoken decisively against the persistent harassment and victimisation of Imran Khan's political party, asserts Rana Banerji, who headed the Pakistan desk at RA&W.
Terming "Indian aggression" as a threat to the entire region, Prime Minister Nawaz Sharif on Friday warned that Pakistan is also capable of executing surgical strikes and will not allow anyone to "cast an evil eye" on it.
The talks for normalising trade had begun in November 2011.
Pervez Musharraf is contemplating a political front with jihadi groups to contest Pakistan's next election. Should the jihadi groups win a few seats, terrorist outfits will gain legitimacy in Pakistan, warns Brigadier S K Chatterji (retd).
Determined to oust Pakistan Prime Minister Nawaz Sharif, tens of thousands of protesters on Friday marched towards the capital in two separate convoys as clashes erupted with opposition leader Imran Khan claiming that ruling PML-N activists fired at his vehicle.
The Panama verdict will decide how Pakistan handles its leadership problems.
"Terrorism is an enemy of the basic human rights: of life, peace and prosperity," Swaraj said.