Here are 10 developments in the story:
Commenting that central rule should not be used for political reasons, the High Court questioned "the hurry to impose President's Rule when the governor had set a date for the floor test."
"Floor test is the best test and the correct arena," said the court as the Centre argued against a trust vote on grounds that "there is no government" in Uttarakhand.
The Centre said a trust vote would mean an assembly sitting and "two governments, one that has had the sitting and one that is there under central rule."
Attorney General Mukul Rohatgi said: "The assembly building is empty, there is no government, there is no MLA (lawmaker) once 356 (President's Rule) is in place."
The court's ruling yesterday ordering a trust vote was seen as embarrassing for the Centre, which had ordered President's Rule on the weekend.
Till last week, Harish Rawat was Chief Minister, confronting dissidence within his Congress party. Earlier this month, nine Congress rebel lawmakers voted against him on the state's budget.
The Centre said this proved that the Congress government had been reduced to a minority. Mr Rawat and his party refuted that allegation, and were told by Governor KK Paul to take a trust vote on Monday, March 28.
However, before that could happen, President Pranab Mukherjee sanctioned the Cabinet's recommendation for Uttarakhand to be governed by the Centre.
Adding to Mr Rawat's challenges is a video aired by a local news channel which claimed that he could be seen and heard offering bribes to lure back the nine rebels.
Uttarakhand is one of eight states governed by the Congress (among those are Kerala and Assam where elections have been called). Earlier this year, its government in Arunachal Pradesh collapsed, again, after a mutiny within its legislators.
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