Hyderabad, May 29 -- Hundreds of schools across the country, including government-run Kendriya Vidyalayas and Jawahar Navodaya Vidyalayas, posted social media videos defending the Central Board of Secondary Education's (CBSE) controversial on-screen marking (OSM) system after regional offices of the board circulated a scripted toolkit to school principals.

The toolkit, a document titled "Material for Principals," contained ready-to-read scripts and talking points that principals were asked to use in their videos, the Hindustan Times reported

The document urged principals to describe CBSE as "highly proactive, empathetic, and communicative" and to reassure students and parents that "no child will be allowed to suffer due to a technical e...