Quick Facts
- CBSE used On-Screen Marking for Class 12 answer books for the first time in 2026.
- Around 40 crore pages were scanned, and CBSE said 68,018 scripts needed rescanning.
- Students reported blurred scans and mismatched sheets, then sought scanned copies and re-evaluation.
In This Article
On-Screen Marking is CBSE’s digital system where Class 12 answer sheets are scanned and graded on a computer screen instead of on paper. CBSE used it at full scale for the first time in 2026.
The Central Board of Secondary Education (CBSE) announced the change in a circular on February 9, 2026. After Class 12 results came out on May 13, 2026, many students reported blurred scans, missing pages, and mismatched answer sheets. The complaints led to demands for scanned copies and re-evaluation, as reported in the Times of India explainer on the rollout.
Key Takeaways
- On-Screen Marking aimed to cut totalling errors, but scanning quality became the new weak point in 2026.
- CBSE rolled out OSM for all Class 12 scripts at once, skipping a small phased pilot for this scale.
- Students gained the right to see scanned answer copies, a transparency step that earlier rules had removed.
CampusFeed Take
On-Screen Marking was not the villain here, scale was. CBSE moved nearly one crore Class 12 scripts onto a digital portal in a single cycle, without a phased trial sized for that load. The real lesson sits with regulators and large boards planning similar shifts: digitisation removes old errors only when scanning, hardware, and helpdesk capacity are tested first. Parents and students should watch the next exam cycle closely, especially any CBSE notification before the 2027 boards that spells out scan-quality checks and a clear re-evaluation window. Transparency that arrives only after a public outcry is a fix, not a plan. By Dr. Mayank Raj.
What On-Screen Marking Means for CBSE
On-Screen Marking (OSM) is a system where a student’s physical answer book is scanned into a digital image and evaluated by a teacher on a computer screen. CBSE introduced it for Class 12 answer books from the 2026 board examinations, while Class 10 answer sheets stayed in the older physical mode.
Under the framework, answer booklets were transported to CBSE Regional Offices for scanning. The scans were uploaded to a central portal, known as the OnMark platform, where evaluators marked answers question by question. CBSE said the system would remove totalling errors, reduce skipped answers, and speed up result declarations, according to its February 2026 circular published on the official CBSE website.
Key OSM Numbers at a Glance
The 2026 OSM rollout was one of the largest digital evaluation drives CBSE has attempted. The table below lists the main figures CBSE and news reports cited during the cycle.
| Item | Figure |
|---|---|
| Class 12 candidates affected | About 17 lakh (news reports) |
| Answer books scanned | 98,66,222 (CBSE statement, May 17) |
| Pages scanned | About 40 crore (CBSE) |
| Scripts being rescanned | 68,018 due to poor scan quality (CBSE) |
| Scanned copy requests | More than 4 lakh students (news reports) |
| Re-evaluation requests processed | About 6.3 lakh (news reports) |
The single most striking number is 68,018: that is how many Class 12 scripts CBSE said were being rescanned because the first scans were too poor to mark reliably.
About CBSE
The Central Board of Secondary Education (CBSE) is a national school board in India that sets curriculum and conducts Class 10 and Class 12 examinations. It was reconstituted in 1962 and is governed by the Ministry of Education. CBSE affiliates thousands of schools in India and in 26 other countries, and its Class 10 and 12 exams together cover nearly 46 lakh students each year, making it one of the country’s largest examination authorities.
Where Did the OSM Rollout Fail?
The OSM rollout failed mainly at the scanning stage, where blurred, cropped, or missing pages reached evaluators who then marked incomplete images. After the May 13, 2026 result, students reported wrong answer sheets, unmarked answers, and unexpected marks across several subjects.
CBSE said about 40 crore pages were scanned and that 68,018 scripts were being rescanned due to poor quality, in a statement issued on May 17, 2026. Teachers also reported difficulty reading certain handwriting on screen and occasional portal glitches. Questions were raised about the digital evaluation contract and reported security concerns. CBSE later allowed students to access scanned copies of evaluated answer sheets on request, and processed re-evaluation applications, a route students could begin through the CBSE academic portal.
What This Means For You
If you are a student
If your Class 12 marks looked lower than expected in 2026, you could request a scanned copy of your answer sheet and apply for re-evaluation. Always check the official CBSE portal for the exact application window and fees, because these dates change every cycle and missing them closes the option for the year.
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If you are a parent
If you are supporting a Class 12 student, treat the scanned copy as your first checkpoint before deciding on re-evaluation. Compare the marked image against what your child remembers writing. This keeps the decision factual and calm, rather than driven by anxiety or social media chatter.
If you are a school principal or teacher
If you manage CBSE evaluation duties, the 2026 cycle shows that scan quality and evaluator training now matter as much as the marking scheme itself. Build time for staff to practise on the OnMark platform and flag unreadable scans early, so errors are caught before results, not after.
What Is Next
CBSE is expected to review the 2026 OSM cycle and issue guidance before the next board examinations. Watch for these likely dates:
- Any CBSE notification before the 2027 boards on scan-quality checks and re-evaluation rules.
- Updated evaluation guidelines for affiliated schools and trained examiners.
Will CBSE run a smaller phased trial next time before scaling OSM again?
Frequently Asked Questions
Last updated: June 11, 2026 at 23:30 IST
Last verified: June 11, 2026
Disclaimer: This article is for general informational purposes only and is based on publicly available information at the time of publishing. Exam dates, cutoffs, fees, deadlines, eligibility criteria, and scholarship details can change without notice. Always verify the latest information from the official portal of CBSE before taking any action. CampusFeed and its authors are not responsible for decisions made based on this article. This is not legal, financial, or career advice. Please consult a qualified professional for individual guidance.
Written by Dr. Mayank Raj. Published: June 11, 2026. Updated: June 11, 2026. Have a tip or correction? Write to us at editorial@campusfeed.in.
