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Only 100 days left for JEE Main 2027? Don’t panic.
At this point, the biggest mistake you can make is trying to study everything equally, giving priority to every chapter equally. You don’t need a perfect preparation plan. You need a realistic one that helps you finish important topics, revise what you’ve already studied, solve PYQs and get comfortable with full-length tests.
So, if you’re wondering what to study in the last 100 days for JEE Main 2027, here’s a simple strategy you can actually follow.
What Should You Do in the Last 100 Days?
Your preparation should gradually move through these five stages:
Syllabus → Questions → PYQs → Revision → Mock Tests
Don’t spend all 100 days watching lectures. Because in the end, you’ve to solve questions in your exam. A chapter isn’t really “done” just because you’ve completed its lecture. You should be able to recall the concepts, use the formulas and solve JEE Main-level questions from it.
JEE Main 2027 Last 100 Days Plan
So instead of making an impossible day-by-day timetable, divide the 100 days into four phases.
| Days | Main Focus |
|---|---|
| Day 1–35 | Finish important pending chapters |
| Day 36–60 | Revision + PYQs |
| Day 61–80 | Mixed practice + regular mocks |
| Day 81–100 | Final revision + mock tests |
I recommend you to adjust these phases according to how much of the syllabus you’ve already completed.
Days 1–35: Finish Your Pending Syllabus
Now this is the time to be selective. Start with chapters that are frequently asked, relatively comfortable for you, and prerequisites for other chapters. Chapters that are capable of giving you good returns for your time invested.
Don’t spend 7–8 days trying to master one extremely difficult chapter while leaving several manageable chapters untouched. Because that one complex will also give you the +4 marks that an easily manageable chapter can.
For every chapter, follow a simple cycle:
Learn → Revise → Solve questions → Do PYQs → Mark mistakes
That last step is very important. Your mistakes will become one of your most useful revision resources later.
Days 36–60: Revision + PYQs
By now, in this time, your focus should slowly shift from learning to strengthening.
Revise your formulas, concepts, reactions and short notes. Then solve JEE Main PYQs chapter-wise.
Don’t just check whether your answer is correct.
After every wrong question, Ask yourself:
Why were you not able to solve this question correctly?
Were you not able to recall the concept of formula?
Did you even know this concept or was it a calculation mistake?
Did you misunderstood the question?
Did you spend way much time on it?
This will tell you what actually you need to fix.
Days 61–80: Start Thinking Like You’re in the Exam
Now start mixing chapters instead of solving everything chapter-wise. I recommend you to take time bounded regular tests and gradually increase the number of full-length mocks.
A mock test is useful only when you analyse it afterwards. And accuracy is also an impotant factor.
After every test, analyse it by check:
Score + Accuracy + Time + Silly mistakes + Weak chapters
Then spend the next few days fixing those problems.
A simple cycle works well:
Mock → Analyse → Fix → Revise → Next Mock
Days 81–100: Don’t Try to Learn the Entire Syllabus Again
The last 20 days are not the time to start collecting new books, new teachers or huge new question banks. In this time you should focus on, Formula revision, Important reactions.
NCERT revision where relevant, Your short notes, PYQ mistakes, Mock-test mistakes, the concepts that you frequently forget.
My teachers always say that, last 20 days are the days to collect whatever you studied previously by revising the full syllabus.
So at this stage, your goal should be fast recall and fewer mistakes, not maximum syllabus expansion.
What to Study in Physics?
Physics can become much easier to manage when you stop treating every chapter the same.
Give priority to chapters you have already studied but haven’t revised properly. Then strengthen important areas through PYQs and timed practice.
During the last 100 days, keep revising:
Important formulas
Standard concepts
Graphs and relationships
Common question patterns
Your personal mistake list
Don’t just read Physics. Solve Physics.
What to Study in Chemistry?
Chemistry needs frequent revision because forgetting a reaction, exception or small NCERT detail can cost you an otherwise easy question.
Physical Chemistry
Focus on:
Formulas
Important concepts
Numerical practice
PYQs
Organic Chemistry
Focus on:
Reaction mechanisms
Named reactions
Reagents
Conversions
Important exceptions
Inorganic Chemistry
Focus on:
Keep NCERT at the centre of your revision, along with PYQs and your short notes. I highly recommend revising NCERT at least two times for Inorganic Chemistry.
The key here is repetition. One revision is rarely enough.
What to Study in Maths?
Don’t try to solve hundreds of random questions just to increase your question count.
Focus on:
Chapters you can realistically score from
Important formulas
Standard question types
JEE Main PYQs
Speed and accuracy
Maths can easily consume too much time in a paper, so practice on deciding that which questions you have to attempt and which ones to leave in your main exam.
What If My Syllabus Is Still Incomplete?
This is probably the most important question.
If you still have a lot of chapters left, don’t spend the first 70 days trying to complete every single chapter perfectly.
Divide your syllabus into three groups:
A – Strong Chapters
Revise + solve PYQs regularly.
B – Familiar but Weak Chapters
These should get most of your attention.
C – Completely New/Difficult Chapters
Study them only after considering the time required and your overall preparation.
Your aim isn’t to have the prettiest completed syllabus.
Your aim is to turn as much of your existing preparation as possible into actual marks.
And if you want an Important Chapters List to prioritize while doing revision, check this out: https://edublog.cloud/10-most-important-chapters-for-jee-main-2027/
How Many Hours Should You Study?
There isn’t one magical number that works for everyone.
A student who can genuinely focus for 7 hours is better off than someone who makes a 14-hour timetable and follows it for three days.
Instead of obsessing over hours, track your daily output:
What did I learn?
How many questions did I solve?
How many PYQs did I complete?
What mistakes did I fix?
What did I revise?
Consistency matters more than creating an impressive timetable.
What NOT to Do in the Last 100 Days
Avoid these common traps:
- Starting new books every few days
- Watching lectures without solving questions
- Ignoring PYQs
- Postponing mock tests until the very end
- Making an unrealistic 12–15 hour timetable
- Spending the entire day making notes
- Comparing your preparation with someone else’s
- Trying to finish every chapter at any cost
- Ignoring your mistakes after tests
And please don’t waste the first few weeks feeling guilty about the time you’ve already lost.
Those days are gone. The next 100 are still yours.
A Simple Daily Structure
Your exact routine will depend on your preparation level, school/coaching schedule and weak subjects, but a day can look something like this:
Session 1: New/weak chapter
Session 2: Question practice
Session 3: PYQs
Session 4: Revision/formulas/NCERT
Session 5: Mistake analysis or test
You don’t need to copy someone else’s timetable minute-by-minute.
Build a routine that you can actually repeat for the next 100 days.
Final 100-Day Checklist
Before JEE Main 2027, try to make sure you have:
☐ Completed your priority chapters
☐ Solved JEE Main PYQs
☐ Revised formulas regularly
☐ Revised Chemistry NCERT where required
☐ Maintained a mistake/error list
☐ Taken timed tests
☐ Analysed your mocks
☐ Revised weak chapters
☐ Practised full-length papers
☐ Kept the final days for revision rather than panic-learning
Final Words
100 days can feel like a lot or very little depending on where you are right now.
But don’t waste them trying to create the perfect JEE Main 2027 timetable.
Make a plan. Start with the chapters that can actually improve your score. Solve questions. Learn from your mistakes. Revise again. Test yourself.
And when you have a bad day, don’t decide that your entire preparation is ruined.
Just get back to the plan the next day.
Official NTA website: jeemain.nta.nic.in
100 days. One day at a time.
Peace!
Written by- Sakshi Singh
Last Updated- October 7th, 2026