Why have madrasas been in the spotlight in Uttar Pradesh? | Explained

Why did the Supreme Court stay a ruling of the Allahabad High Court on the U.P. Board of Madrasa Education Act 2004? What was the aftermath of the U.P.’s government’s survey on madrasas?

​Why did the Supreme Court stay a ruling of the Allahabad High Court on the U.P. Board of Madrasa Education Act 2004? What was the aftermath of the U.P.’s government’s survey on madrasas?