An eight-member bench of the Constitutional Court ruled that the polls announced by Yingluck's caretaker government can be postponed.
Eight judges unanimously agreed that the vote can be postponed, and they voted 7-1 that Yingluck should discuss a new date with the Election Commission and issue a new date.
The was case forwarded to the court by the Election Commission to rule who had the authority to postpone the election, the poll panel or the caretaker government.
The caretaker administration has repeatedly said it has no authority to defer the polls declared by a royal decree. The poll panel argued that the caretaker cabinet has the responsibility to seek a new election through a new royal decree.