One of India's only states not ruled by the Bharatiya Janata Party (BJP) is likely to see its government toppled after a top Congress leader defected.
Jyotiraditya Scindia joined the BJP on Wednesday following a day of high drama in Madhya Pradesh, where the Congress party is in power.
"I'm excited to work under the leadership of PM Modi," he told reporters.
A number of Congress state legislators are believed to be supporting him.