Explanation:

Until 1998, Uttarakhand was the name most commonly used to refer to the region, as various political groups, including the Uttarakhand Kranti Dal (Uttarakhand Revolutionary Party), began agitating for separate statehood under its banner. On 24 September 1998, the Uttar Pradesh Legislative Assembly and Uttar Pradesh Legislative Council passed the Uttar Pradesh Reorganisation Bill, which began the process of forming a new state.Two years later the Parliament of India passed the Uttar Pradesh Reorganisation Act, 2000 and thus, on 9 November 2000, Uttarakhand became the 27th state of the Republic of India.