India, March 10 -- A QR code on the Class 12 Central Board of Secondary Education (CBSE) mathematics question paper redirects to a YouTube video of English singer Rick Astley's 1987 hit song "Never Gonna Give You Up", triggering confusion and discussion on social media about the integrity of the security feature.

The images of the question paper began circulating on X, Instagram, and Reddit after the Class 12 mathematics examination on Monday.

The CBSE began printing QR codes on question papers in 2019, a year after the Class 12 economics and the Class 10 mathematics papers were leaked on social media and messaging platforms. The leak forced the CBSE to re-conduct the Class 12 economics examination. The board decided against re-conducti...