CBSE OSM Mass Mock Evaluation 2026: Mandatory Test for Teachers on Feb 26
The Central Board of Secondary Education (CBSE) has issued an urgent directive mandating a Mass Mock Evaluation of the On-Screen Marking (OSM) system. Scheduled for Thursday, February 26, 2026, this digital exercise is strictly compulsory for all appointed teachers of Classes XI and XII across India and abroad.
Authority: Controller of Examinations, CBSE
Target Audience: All Classes XI & XII Evaluators
Venue Rule: Teachers MUST login from their respective schools only.
Prior to the commencement of the actual subject-wise board exam evaluation, this mass mock test is designed to verify the load-bearing capacity of the CBSE servers, ensure that all teachers have successfully saved their login credentials, and provide them with first-hand experience on the updated Digital Evaluation platform.
The Role of the Principal’s Dashboard
CBSE has activated a dedicated monitoring dashboard for School Principals. Through this portal, Principals can correct faulty teacher data via OASIS, manually push login credentials to evaluators, and track exactly how many teachers have logged in and evaluated the sample answer books.
Region-Wise Time Schedule for OSM Mock Test
To prevent server crashes and ensure smooth load testing, CBSE has divided the mock evaluation into strict 30-minute time slots based on the school’s geographical region. Teachers must log in exactly during their allotted time.
| CBSE Regional Offices | Allotted Login Time (Feb 26, 2026) |
|---|---|
| Prayagraj, Trivandrum, Dehradun, Vijayawada | 08.30 AM to 09.00 AM |
| Noida, Patna, Lucknow, Raipur | 09.15 AM to 09.45 AM |
| Bhubaneswar, Chandigarh (Ludhiana), Delhi-East (With foreign schools) | 11.00 AM to 11.30 AM |
| Ajmer, Pune, Guwahati, Panchkula | 11.45 AM to 12.15 PM |
| Ahmedabad, Ranchi, Bengaluru, Bhopal, Chennai | 12.30 PM to 01.00 PM |
| Delhi-West, Gurugram | 02.00 PM to 02.30 PM |
February 26 was specifically chosen for this load test because only 2.92 Lakh candidates are appearing for physical examinations globally on this date, allowing server bandwidth to be allocated to the OSM portals.
Strict Instructions for Teachers and Principals
The mock evaluation is not optional. The Board has laid down strict operational rules to ensure the success of this digital exercise.
Must login ONLY from the school premises.
Must evaluate exactly one answer book during the mock test.
Stop working on the system immediately once the allotted time is over.
Report any technical issues directly to the Principal.
Ensure 100% participation of Class XI and XII teachers.
Monitor live login status via the Principal’s Dashboard.
Compile all technical issues faced by teachers.
Email the consolidated issue report to osm@cbseshiksha.in.
Frequently Asked Questions (FAQs)
When is the CBSE OSM Mass Mock Evaluation 2026 scheduled?
The mandatory Mass Mock Evaluation for the On-Screen Marking (OSM) system is scheduled for Thursday, 26 February 2026.
Who must participate in the CBSE digital mock evaluation?
All appointed teachers of Classes XI and XII from CBSE-affiliated schools in India and abroad must compulsorily log in and evaluate one answer book.
Can teachers log in to the OSM portal from their homes?
No. According to the CBSE circular, it is strictly mandatory for teachers to log in during their allotted time from their respective schools only.
Where should Principals report technical issues faced during the OSM mock test?
Principals must compile any login or evaluation issues reported by the teachers and email them to the Board at osm@cbseshiksha.in.
हिंदी सारांश (Hindi Summary)
केंद्रीय माध्यमिक शिक्षा बोर्ड (CBSE) ने 26 फरवरी 2026 को ऑन-स्क्रीन मार्किंग (OSM) सिस्टम का ‘मास मॉक इवैल्यूएशन’ (Mass Mock Evaluation) आयोजित करने का सख्त निर्देश जारी किया है। 11वीं और 12वीं कक्षा के सभी शिक्षकों को अपने स्कूल से ही तय समय के भीतर सिस्टम में लॉगिन करना अनिवार्य है। इस मॉक टेस्ट का उद्देश्य मुख्य मूल्यांकन से पहले सर्वर की क्षमता जाँचना और शिक्षकों को डिजिटल सिस्टम से परिचित कराना है। प्रत्येक शिक्षक को एक उत्तरपुस्तिका का मूल्यांकन करना होगा। पूरे देश को अलग-अलग समय स्लॉट (Time Slots) में बांटा गया है। किसी भी तकनीकी समस्या की रिपोर्ट प्रधानाचार्य द्वारा osm@cbseshiksha.in पर भेजी जानी चाहिए!
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