CBSE introduces digital on-screen marking system for Class 12 board exams 2026: Check details https://english.mathrubhumi.com/education/cbse-class-12-on-screen-marking-2026-caeq446m?utm_source=dlvr.it&utm_medium=mastodon #CBSE #BoardExams2026 #Class12 #EducationNews #OSM