The Central Board of Secondary Education (CBSE) has activated a dedicated OSM (Online System for Marking) Monitoring Portal to streamline the mock evaluation process for senior secondary classes. In an official notice, the Board has directed all schools to ensure that teachers handling Classes XI and XII complete the mandatory OSM mock evaluation practice session.

CBSE Activates OSM Monitoring Portal; Principals to Ensure Mock Evaluation Completion
To enhance transparency and accountability, CBSE has introduced a special dashboard for Principals and Heads of Schools (HoS). This dashboard allows school leaders to track teacher participation, update contact details, and resolve login-related issues efficiently.
What is the OSM System?
The Online System for Marking (OSM) is CBSE's digital platform designed to modernize and standardize the evaluation process. Through OSM:
- Answer scripts are evaluated digitally.
- Evaluation timelines are streamlined.
- Transparency and efficiency are improved.
- Manual errors are minimized.
The mock evaluation ensures teachers are familiar with the system before the main board exam evaluation begins.
Key Highlights of the CBSE Notice
- Dedicated OSM Monitoring Dashboard activated.
- Principals can track teacher login and participation status.
- All Class XI and XII teachers must complete the practice session.
- Schools can update teacher details directly via the dashboard.
- Login-related issues to be addressed at the school level.
This move strengthens institutional monitoring and preparedness.
Role of Principals and Heads of Schools
- CBSE has assigned specific responsibilities to school heads:
- Ensure all eligible teachers log in to the OSM portal.
- Monitor completion status of mock evaluation sessions.
- Verify and correct teacher contact information in OASIS.
- Address technical or login challenges promptly.
The dashboard empowers principals to maintain accurate records and prevent evaluation delays.
Importance of Updating OASIS Details
CBSE highlighted that incorrect or outdated teacher contact information in OASIS (Online Affiliated School Information System) may prevent access to the OSM portal. Therefore:
- Schools must verify teacher email IDs and mobile numbers.
- Errors should be corrected immediately through the monitoring dashboard.
This ensures no teacher is excluded from the evaluation process due to technical discrepancies.
Why Mock Evaluation is Mandatory
The mock session prepares teachers for:
- Digital answer script assessment
- Navigation of marking interface
- Uploading and submitting evaluation data
- Understanding marking schemes digitally
Proper training through mock evaluation helps maintain accuracy and consistency during the actual board evaluation process.
Impact on Upcoming Board Evaluations
By ensuring teachers are fully prepared:
Evaluation delays can be minimized.
Quality and uniformity of marking will improve.
Technical disruptions during main evaluation can be avoided.
The initiative reflects CBSE's continued push toward digital transformation in board examination systems.
Conclusion
The activation of the OSM Monitoring Portal marks an important step by CBSE in strengthening digital evaluation preparedness. With principals now able to track participation and update teacher information directly, the Board aims to ensure that all Class XI and XII teachers are fully trained before the main evaluation cycle begins.
Schools are advised to complete the mock evaluation process promptly and verify OASIS data to ensure seamless implementation of the OSM system.


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