A bench of Acting Chief Justice A K Sikri and Justice Anil Kumar asked power regulator DERC to inform it about the power tariff notification within a week after publishing it.
DERC has recently announced a 26 percent hike in power tariff for all domestic consumers with effect from July 1.
The court's direction came on a PIL filed by Ravinder Kumar, a member of Delhi BJP Pradesh Executive Committee, alleging that the tariff hike has come into effect without issuance of the notification.
The regulator has allowed private discoms to raise the tariff without any notification, the PIL said adding so far, no reasons have been cited which made it necessary.
The hike was against public interest and without justification and transparency, it said, adding that the new tariff has been implemented without completion of the audit reports of three private discoms for the year 2010-11 and 2011-12.