India, May 31 -- A nationwide controversy over the Central Board of Secondary Education's first-time use of On-Screen Marking (OSM) system for Class 12 has been driven not by political parties or street demonstrations, but by three teenagers online - a student who was handed someone else's answer sheet; another 17-year-old who dissected the OSM contract; and a 19-year-old who said he breached the web portal altogether.

These three, and many others like them on X and Instagram, have forced the CBSE to concede errors on some technical fronts, defend its system overall, and flatly reject corruption claims. The company running the OSM platform, Hyderabad-based Coempt EduTeck, has denied any wrongdoing too.

The Congress-led Opposition, howev...