Section 139(2) in The U.P. Electricity Regulatory Commission (Conduct of Business) Regulations, 2004
(2)The tariffs so published under (1) above shall become the notified tariffs applicable in the area of supply and shall come into force after seven days from the last date of such publication of the tariffs, and shall be in force until any amendment to the tariff is approved by the Commission and published. The Commission shall, within seven days of making the order, send a copy of the order to the State Government, the Authority, the concerned licensees and the person concerned.