The Central Board of Secondary Education (CBSE) has manually re-evaluated more than 13,000 answer sheets after detecting errors in its digital marking portal [3].
This failure in the On-screen Marking (OSM) system threatens the accuracy of national examination results and undermines student trust in India's shift toward digital grading. The scale of the manual correction suggests a systemic vulnerability in how the board processes high-stakes academic records.
Reports indicate that the board detected 20 answer-sheet mix-up cases [1, 2]. These errors occurred on the OSM portal, where digital versions of student work are uploaded for examiners to grade. The mix-ups mean that some students may have had their marks assigned to the wrong identity, or received grades for work they did not produce.
According to reports, the issues stemmed from scanning and security flaws within the digital evaluation platform [5]. These technical failures caused the mismatches, prompting the CBSE to intervene. To ensure the integrity of the results, the board initiated the manual review of over 13,000 copies [3].
In response to the digital errors, the CBSE has taken steps to mitigate the impact on students. The board slashed answer-sheet review fees and provided assurances that refunds would be issued to students whose marks improved following the re-evaluation [0].
This incident highlights the risks associated with the rapid digitalization of the Indian education system. While the OSM portal was designed to increase efficiency and transparency, the occurrence of mix-ups indicates that the infrastructure may not have been fully vetted for the volume of data processed during national exams.
“The board detected 20 answer-sheet mix-up cases”
The transition to digital marking is intended to reduce human error and speed up results, but this incident reveals a critical failure in the 'garbage in, garbage out' pipeline of scanning and data entry. By forcing a manual re-evaluation of 13,000 papers, the CBSE has effectively admitted that its digital safeguards were insufficient to guarantee the basic requirement of student-paper matching.
