Why was Uttaranchal renamed Uttarakhand in 2007?

The state of Uttaranchal was renamed Uttarakhand in 2007 to reclaim the traditional name by which the region had been known prior to its statehood.12

The name Uttarakhand, which translates to "northern region," reflects the historical and cultural identity of the area. When the state was first carved out of Uttar Pradesh in November 2000, it was officially designated as Uttaranchal. By adopting the name Uttarakhand in 2007, the state government aligned its official title with the long-standing regional designation used by its people.21