The Central Board of Secondary Education (CBSE) re-evaluation portal remained inaccessible on June 1, 2026, leaving students seeking verification of marks and re-evaluation of Class 12 board examination results in a state of uncertainty. The Board had earlier postponed the commencement of post-result activities, announcing that the verification and re-evaluation portal would become operational from June 1 instead of the previously indicated date. CBSE stated that additional time was required to strengthen website infrastructure and ensure a smooth application process for students.
Portal Delay Follows Earlier Technical Complaints
The delay comes against the backdrop of technical complaints that surfaced during the answer-sheet access process. Several students reported difficulties while obtaining scanned copies of evaluated answer books. Complaints included portal access problems, payment gateway issues, and discrepancies in fee displays. The answer-sheet access stage itself became controversial after some students alleged that scanned copies were blurred, incomplete, or did not correspond to their original answer books.
IIT Experts Involved in System Review
As concerns over the digital evaluation ecosystem expanded, CBSE brought in experts from IIT Kanpur and IIT Madras to review and strengthen various technological components associated with the process. Union Education Minister Dharmendra Pradhan also stated that corrective measures would be undertaken wherever discrepancies were identified and assured that student grievances would be addressed. Despite those interventions, students attempting to access re-evaluation services reported that the relevant portal link had not become functional as expected.
Heavy Traffic Expected Once Services Begin
CBSE expects substantial demand for post-result services, with lakhs of students likely to apply for verification, photocopies of answer books, and re-evaluation requests. The Board has said that the revised schedule is intended to maintain evaluation standards and minimise disruptions during the application process. Students seeking assistance have been advised to use official CBSE support channels until the portal becomes fully operational.
The verification and re-evaluation mechanism enables candidates to seek review of totalling errors, unchecked responses, and specific answers after examining copies of their evaluated answer sheets. With applications yet to begin, many students continue to await the activation of the online system.
Digital Evaluation Remains Under Scrutiny
The On Screen Marking (OSM) system introduced for Class 12 evaluation this year remains at the centre of discussion. The system was designed to facilitate digital assessment of scanned answer books. However, student complaints, technical concerns, and later cybersecurity allegations have kept the digital evaluation model under continuous scrutiny since the declaration of results.
Can Students Apply for Re-Evaluation Yet?
Students seeking post-result services are still looking for clarity regarding the operational status of the verification and re-evaluation portal. CBSE had postponed the earlier schedule and announced a revised launch date. However, candidates continue reporting difficulties in accessing the required online facilities needed to initiate verification and re-evaluation requests.
A Timeline of the Controversy That Refuses to Fade
The CBSE OSM controversy has unfolded in several stages. Initially, students reported difficulties accessing scanned answer books and alleged that some copies were blurred, incomplete, or mismatched. Concerns then emerged regarding missing supplementary sheets and technical glitches during the answer-sheet access process. As discussions intensified, teachers involved in evaluation spoke about challenges linked to digital assessment, including image clarity and system-related issues.
The matter gained further attention when cybersecurity researchers and ethical hackers alleged vulnerabilities within CBSE-linked digital infrastructure. Claims regarding publicly accessible answer sheets and data exposure added a new dimension to the debate. CBSE subsequently stated that identified vulnerabilities had been contained and that experts from IIT Kanpur, IIT Madras, and government agencies had been involved in strengthening the systems. Meanwhile, students continue waiting for the verification and re-evaluation portal to become fully operational.
OSM Controversy Grows from Evaluation Complaints to Data Concerns
What began as complaints about scanned answer sheets has evolved into a wider debate about CBSE's digital examination ecosystem. Students initially raised concerns regarding blurred scans, missing pages, and answer-sheet discrepancies. More recently, attention has shifted towards cybersecurity claims involving digital infrastructure connected with the evaluation process.
Students Continue Waiting for Post-Result Services
Many Class 12 students remain unable to apply for verification of marks or re-evaluation despite the revised launch date announced by CBSE. The Board had said additional time was needed to strengthen infrastructure and ensure a smoother process. The delay has added to concerns among students already dealing with complaints regarding answer-sheet access and evaluation-related issues.
Fresh Cybersecurity Allegations Deepen OSM Row
The controversy surrounding CBSE's On Screen Marking system has expanded beyond evaluation concerns. Ethical hackers and developers have alleged security vulnerabilities linked to CBSE-connected digital infrastructure. Claims include exposure of scanned answer sheets and question papers through improperly configured systems. CBSE has stated that identified vulnerabilities have been contained and that specialists have been deployed to strengthen security measures.
Why Is the Re-Evaluation Portal Still Not Working?
Students awaiting verification and re-evaluation services continue to face uncertainty as the CBSE post-result portal remains inaccessible. The Board had announced that the system would become operational from June 1 after postponing the earlier schedule. The delay follows complaints during the answer-sheet access phase, when candidates reported technical issues while retrieving scanned copies of evaluated answer books and completing related processes.
CBSE's OSM Controversy: A Timeline of Glitches, Answer-Sheet Disputes and Fresh Data Exposure Claims
The Central Board of Secondary Education's transition to the On Screen Marking system for Class 12 board examinations has remained under scrutiny since the declaration of results, with a series of complaints, technical issues, and security-related allegations emerging over the past few weeks. What began as student complaints regarding answer sheets has gradually expanded into a wider controversy involving evaluation processes, portal functionality, cybersecurity concerns, and demands for greater transparency in post-result services.
Complaints Emerge After Answer Sheets Become Accessible
The first major concerns surfaced when students began accessing scanned copies of their evaluated answer books through the post-result process. Several students reported that scanned answer sheets appeared blurred or incomplete. Some candidates alleged that supplementary sheets were missing, while others claimed that pages were not visible in the copies made available to them. The controversy intensified after a student alleged that the answer sheet uploaded under his credentials did not match his handwriting. CBSE later stated that the correct answer book had subsequently been provided to the student. Alongside these concerns, students and parents also reported difficulties accessing scanned answer books through the digital platform.
Questions Raised Over OSM Implementation
The OSM system was introduced this year for Class 12 evaluation, replacing conventional paper-based assessment workflows with digital evaluation of scanned answer books. During the controversy, several teachers involved in evaluation stated that they had encountered issues such as blurry scans, page-loading problems, and difficulties while assessing lengthy descriptive responses on screen. Union Education Minister Dharmendra Pradhan later acknowledged that discrepancies had been reported and stated that corrective measures would be taken wherever required. He also said the government would ensure that student grievances were addressed. According to the minister, around 17 lakh students appeared for the examinations, involving nearly 98 lakh answer books and approximately 40 crore scanned pages.
IIT Experts and Government Agencies Brought In
As concerns around the digital infrastructure grew, CBSE stated that experts from IIT Kanpur and IIT Madras had been associated with reviewing and strengthening the technology framework linked to the evaluation ecosystem. The Board also maintained that all genuine complaints were being examined and that students would have access to post-result remedies through verification and re-evaluation processes.
Fresh Cybersecurity Allegations Surface
The controversy entered a new phase after software developers and ethical hackers publicly alleged vulnerabilities within CBSE-linked digital infrastructure. Android developer Sidharth claimed on X that multiple OnMark portals contained security weaknesses, including default passwords and other vulnerabilities. Separately, software engineer Nisarga Adhikary alleged that a CBSE-linked AWS storage bucket had been configured in a manner that allowed public access to scanned answer sheets and question papers. In another post, Adhikary claimed that "another live CBSE prod portal" had been compromised and that a significant amount of personally identifiable information had been exposed. He stated that CERT-In and CBSE had been informed about the alleged vulnerability. CBSE subsequently said that vulnerabilities detected in systems operated by its service provider had been contained and that cybersecurity specialists from government agencies and IITs had been deployed to strengthen security measures. However, the Board did not specifically address the AWS-related allegations cited by activists and developers. The developments have added another layer to an issue that initially began with evaluation-related concerns and has since expanded into a broader debate around digital examination infrastructure.
