Scoring 90+ in CBSE Class 12 boards is the dream of every student — and it is absolutely achievable with the right strategy. Thousands of students score above 95% every year, and they all share one thing: a structured, consistent approach. This guide breaks down exactly what you need to do.
1. Understand the CBSE Marking Scheme
Before you open a single textbook, download the latest CBSE sample papers and marking schemes from the official CBSE website. Understanding how marks are allocated — 1-mark, 3-mark, 5-mark questions — helps you prioritise what to study and how to write answers in the exam.
CBSE awards step marks. Even if your final answer is wrong, you can score partial marks for correct steps. Always show your working.
2. Master NCERT — Every Single Line
CBSE exams are NCERT-centric. Over 80% of questions in Maths, Physics, Chemistry, and Biology come directly from NCERT textbooks. Here is how to master NCERT effectively:
- Read each chapter at least three times — once for understanding, once for in-text questions, once for end exercises.
- Solve every NCERT exercise question, including examples. Don't skip any.
- For Science subjects, understand derivations and proofs — don't just memorise them.
- For Chemistry, write out reactions multiple times until they are automatic.
- For Biology, draw and label all NCERT diagrams yourself.
3. Build a Realistic Study Timetable
A timetable that looks good on paper but breaks down in practice is useless. Build one you will actually follow:
- 1List all subjects and estimate how many chapters each has.
- 2Allocate more time to your weaker subjects and high-weightage chapters.
- 3Keep 2–3 days per week for revision — not just new learning.
- 4Schedule breaks using the Pomodoro technique: 25 minutes study, 5 minutes break.
- 5Keep 1 day per week completely free for rest and catch-up.
4. Practice Previous Year Papers
Solving last 10 years of CBSE question papers is the single most impactful thing you can do. It reveals the pattern of questions, recurring topics, and teaches you time management. Aim to solve at least one full paper every week in the last 3 months before boards.
Time yourself strictly when solving papers. Board exams are 3 hours — practice finishing 15 minutes early so you have time to review answers.
5. Use Smart Notes for Quick Revision
Re-reading entire textbooks before exams wastes precious time. Instead, build or use concise notes that summarise formulas, definitions, key diagrams, and important reactions on a single page per chapter. This is exactly what ExpKernel notes are designed for — structured, exam-focused, easy to revise in the last few days.
6. Exam Day Strategy
- Read the entire question paper in the first 15 minutes (use the reading time wisely).
- Attempt questions you are most confident about first.
- For long-answer questions, write a brief outline before answering.
- Keep answers neat — underline key terms and use bullet points where applicable.
- Never leave any question blank. Attempt all questions for step marks.
"Consistency beats intensity. Studying 3 hours daily for 6 months will always outperform cramming 12 hours a day for 2 weeks."