In short: The CBSE 2027 date sheet had not been released as of October 28, 2026, but last year's theory exams started on February 17. If 2027 follows the same pattern you have about 112 days. This guide gives a 15-week plan from Monday, November 2 to Sunday, February 14, in four phases: finish the syllabus, practise by topic, take full timed papers, then revise lightly. The paper pattern is unchanged for 2026-27 (80 theory plus 20 internal marks, 50% competency-based questions), and Class 10 now has a second optional exam in May, which you should treat as a safety net, not a plan.
Last updated: October 28, 2026. I will update the dates when CBSE publishes the official date sheet.
CBSE Class 10 2027 — Quick Reference
| Parameter | Details |
|---|---|
| Date sheet | Not released as of October 28, 2026. Reports expected it between October 27 and 31 |
| Last year's Class 10 theory | February 17 to March 10, 2026 |
| Practical and internal assessment | Expected in January 2027 |
| Marks per subject | 80 theory plus 20 internal assessment |
| Paper duration | 3 hours |
| Question mix | 50% competency-based, 20% select response (MCQ), 30% constructed response |
| Passing criteria | 33% separately in theory and in internal assessment |
| Negative marking | None |
| Second board exam | Optional, in May. Best of the two scores counts |
Sources: Jagran Josh, Times of India, Careers360.
What Is Confirmed and What Is Assumed
| Item | Status |
|---|---|
| No change in assessment scheme or passing criteria for 2026-27 | Confirmed in CBSE's September 21 press note, as reported by Indian Express |
| Theory exams start in mid-February | Reported expectation, not official |
| February 17 start | Last year's date. Used here only to count days |
| Second exam in May | Part of the two-exam system. Exact 2027 dates not announced |
If your date sheet shows a later start, add the extra days to Phase 2 and Phase 3. If it starts earlier, shorten Phase 2.
Where the Marks Are: Plan Your Hours by Weightage
Unit marks below come from our weightage guides. Check each against the latest CBSE syllabus PDF.
| Subject | How the 80 marks split | Priority |
|---|---|---|
| Maths | Algebra 20, Geometry 15, Trigonometry 12, Statistics and Probability 11, Mensuration 10, Number Systems 6, Coordinate Geometry 6 | Algebra, Geometry, Trigonometry carry 47 marks |
| Science | Chemical Substances 25, World of Living 25, Effects of Current 13, Natural Phenomena 12, Natural Resources 5 | Chemistry and Biology carry 50 of 80 |
| Social Science | History 20, Geography 20, Political Science 20, Economics 20, with 5 marks of map work inside | Equal sections, so no section can be skipped |
| English | Reading 20, Writing and Grammar 20, Literature 40 | Literature is half the paper |
See the detailed guides: Maths weightage, Science weightage, Social Science weightage and the English paper pattern.
The 80-mark paper structure (core subjects)
| Section | Type | Marks |
|---|---|---|
| A | 20 objective questions (MCQ, assertion-reason) | 20 |
| B | 5 to 6 very short answers (2 marks each) | 10 to 12 |
| C | 6 to 7 short answers (3 marks each) | 18 to 21 |
| D | 3 to 4 long answers (5 marks each) | 15 to 20 |
| E | 3 case-based questions (4 marks each) | 12 |
Weekly Time Budget (Illustrative)
This assumes about 4 hours on weekdays after school, 5 on Saturday and 6 on Sunday, about 31 hours a week. Adjust to your school timings.
| Subject | Hours per week | Share |
|---|---|---|
| Maths | 8 | 26% |
| Science | 8 | 26% |
| Social Science | 6 | 19% |
| English | 4 | 13% |
| Second language (Hindi or other) | 3 | 10% |
| Mock paper analysis and mistake notebook | 2 | 6% |
Sleep 7 to 8 hours. The 2026 AIR 1 in Class 12 reported studying only 2 to 3 hours a day on a regular schedule (NDTV). Consistency matters more than long hours.
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The Four Phases
| Phase | Weeks | Dates | Goal |
|---|---|---|---|
| 1. Complete and consolidate | 1 to 6 | Nov 2 to Dec 13 | Finish every chapter once from NCERT, with all exercises |
| 2. Practise by topic | 7 to 10 | Dec 14 to Jan 10 | Previous-year and sample-paper questions by chapter, plus competency-based practice |
| 3. Full timed papers | 11 to 13 | Jan 11 to Jan 31 | One full paper at a time under exam conditions, then analysis. Complete practicals and projects |
| 4. Final revision | 14 to 15 | Feb 1 to Feb 14 | Formulas, diagrams, maps, dates. Light revision and sleep |
This assumes your school has already covered 60 to 70% of the syllabus. If you are behind, compress Phase 1 into five weeks and use our 30-day emergency plan for the weakest subject.
Week-by-Week Plan: Phase 1 (Complete the Syllabus)
| Week | Dates | Maths | Science | Social Science | English and second language |
|---|---|---|---|---|---|
| 1 | Nov 2 to 8 | Real Numbers, Polynomials, Pair of Linear Equations | Chemical Reactions, Acids Bases and Salts | History: Nationalism in Europe, Nationalism in India | Reading practice, formal letter format. Hindi grammar basics |
| 2 | Nov 9 to 15 | Quadratic Equations, AP, Coordinate Geometry | Metals and Non-metals, Carbon and its Compounds | History: Global World, Industrialisation, Print Culture | Grammar: tenses, voice, reported speech |
| 3 | Nov 16 to 22 | Triangles, Circles | Life Processes, Control and Coordination | Geography: Resources, Forests, Water, Agriculture | First Flight prose |
| 4 | Nov 23 to 29 | Trigonometry and its Applications | How do Organisms Reproduce, Heredity | Geography: Minerals, Manufacturing, Lifelines | First Flight poetry |
| 5 | Nov 30 to Dec 6 | Areas Related to Circles, Surface Areas and Volumes | Light, Human Eye | Political Science: Power Sharing to Outcomes of Democracy | Footprints without Feet |
| 6 | Dec 7 to 13 | Statistics, Probability | Electricity, Magnetic Effects, Our Environment | Economics: all chapters | Analytical paragraph practice. Hindi literature |
Week-by-Week Plan: Phases 2 to 4
| Week | Dates | Focus |
|---|---|---|
| 7 | Dec 14 to 20 | Maths Algebra questions. Chemistry questions. History questions with map work. English reading and writing sets |
| 8 | Dec 21 to 27 | Maths Geometry and Trigonometry. Biology questions and diagrams. Geography with map work. Grammar sets |
| 9 | Dec 28 to Jan 3 | Mensuration and Statistics. Physics numericals. Political Science and Economics case studies. Literature extracts |
| 10 | Jan 4 to 10 | One sample paper per subject section by section. Mark yourself with the official marking scheme |
| 11 | Jan 11 to 17 | Full timed Maths paper and full Science paper, with analysis the next day |
| 12 | Jan 18 to 24 | Full Social Science and English papers. Complete practical files and internal assessment work |
| 13 | Jan 25 to 31 | Alternate full papers. Fix the three weakest chapters per subject |
| 14 | Feb 1 to 7 | Formula sheets, diagrams, map work, history dates. Short daily revision slots |
| 15 | Feb 8 to 14 | Light revision from your mistake notebook. Check stationery and admit card. Early nights |
For a deeper look at using sample papers well, read how to use CBSE sample papers effectively and use the Class 10 sample paper practice set.
The Mistake Notebook: The Habit That Pays Off
After every practice paper, write each lost mark in a notebook with three columns:
| Column | What to write |
|---|---|
| What happened | The question and your answer |
| Why | Concept gap, silly error, time pressure or presentation |
| Fix | The correct method in one line |
In the last two weeks, revise only this notebook. It is shorter than any textbook and contains exactly your weak spots.
The Two-Exam System: How to Plan Around It
From 2026, Class 10 has two board exams. The first, in February, is compulsory. The second, in May, is optional, for improvement or to clear a failed subject. Results of the second exam are likely in June, and the better score counts (Times of India). CBSE has also said students cannot skip the first exam and appear only in May (SchoolMyKids, citing CBSE's Examination Controller).
So the sensible plan is to prepare fully for February. Treat May as insurance. Read our guides on the two-exam system and how to maximise your score across both exams.
Common Mistakes in the Last 100 Days
| Mistake | Fix |
|---|---|
| Starting full papers too early | Do topic-wise practice first. Full papers are for Phase 3 |
| Ignoring internal assessment | It is 20 marks and you need 33% in it separately. Finish practicals and portfolios by January |
| Skipping map work and diagrams | Five marks of map work in Social Science and many diagram marks in Science are easy to secure |
| Studying only the favourite subject | Weak subjects hold the most improvable marks |
| Cutting sleep | Memory consolidates during sleep. Keep 7 to 8 hours |
| Reading answers instead of writing | Write answers in exam format at least three times a week |
Frequently Asked Questions
When will the CBSE Class 10 date sheet 2027 be released?
It had not been released as of October 28, 2026. Reports expected it between October 27 and 31. Last year the final date sheet came on October 30. Check cbse.gov.in and our Class 10 date sheet guide.
Is 100 days enough to prepare for the CBSE Class 10 boards?
Yes, if you follow a structured plan and your school has covered most of the syllabus. With about 31 hours a week for 15 weeks you have roughly 460 study hours. Students who are far behind should prioritise high-weightage chapters and use the emergency plan.
Has the CBSE Class 10 exam pattern changed for 2027?
No. CBSE said there is no change in the assessment scheme or passing criteria for the 2026-27 session. Papers still carry 50% competency-based questions, 20% select response and 30% constructed response.
How many hours should I study each day?
About 4 hours on weekdays after school and 5 to 6 hours on weekends is a sustainable target. Reports of toppers show that regular daily study, not marathon sessions, is the common thread.
Should I wait for the date sheet before starting?
No. The first 5 weeks of this plan do not depend on exact dates. Start now and adjust Phase 2 and Phase 3 once the date sheet is out.
What about the second board exam in May?
It is optional and meant for improvement. You still have to sit the February exam. Prepare for February as if it were your only chance, and use May only if you need it.
Related Guides
- 100-Day Study Plan for Board Exams 2027
- CBSE Class 10 Two-Exam System 2027 — Complete Guide
- How to Score 90% in CBSE Class 10 2027
- CBSE Class 10 Topper Timetable — Hour by Hour Schedule
- CBSE Class 10 Science Practical Exam Guide 2027
- CBSE Class 10 Social Science Map Work Guide
Sources
- Jagran Josh: CBSE Class 10 exam pattern 2026-27
- Indian Express: sample papers released, no change in assessment scheme
- Times of India: Class 10 two-exam system
- Times of India: Class 10 2026 final schedule
- Careers360: CBSE date sheet 2027 status
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