
Costing preparation becomes harder when concepts are familiar, but calculation practice is incomplete or difficult questions keep getting postponed. With around 90 days left, the focus should shift from simply completing chapters to revising them repeatedly and solving questions in writing.
The CA Inter Costing 90 Days Strategy video by PW explains how to plan these final 90 days with a three-cycle revision approach, question practice and exam preparation. PW offers CA Intermediate batches that can also support your CA Inter Costing January 2027 preparation with classes, revision sessions, question practice and exam-focused resources.
A practical 90-day plan can be divided into three revision cycles. The first revision takes the most time because it covers concepts and questions in greater detail. The second revision is shorter and focuses on reinforcement, while the third revision is designed to be quick and exam-oriented.
The plan can be organised across approximately 84 effective revision days, after keeping some time aside for festivals, class completion and other commitments.
|
Revision Cycle |
Time Available |
Main Focus |
|
First Revision |
48 days |
Concepts, classwork, homework and LDR questions |
|
Second Revision |
24 days |
Concept recall, difficult questions and written practice |
|
Third Revision |
12 days |
LDR questions, selected practice and exam simulation |
For students preparing both groups, the first revision can be planned at around 8 days per subject, the second at around 4 days per subject, and the third at around 1.5 days per subject.
If you are attempting only one group, you can use the additional time to increase the number of days available for each subject.
The first revision should be the most detailed of the three. The aim is not just to read the chapter again but to rebuild your understanding and practise the questions you are expected to solve in the examination.
For CA Inter Costing, use the first revision to:
Revise all concepts chapter by chapter.
Complete pending classwork questions.
Complete relevant homework questions.
Watch one-shot revision videos to brush up concepts.
Solve LDR questions in writing.
Review important questions from your study material.
Mark difficult or confusing questions for later revision.
Do not simply watch a revision video and move to the next chapter. Follow it with question practice so that you can check whether you can actually apply the concepts.
A simple chapter-wise process can keep the first revision focused:
One-shot revision → Classwork and homework → LDR questions → Compiler → Mark difficult questions
If you have already revised Costing before, the one-shot can act as a quick refresher. If there has been a long gap since you studied a chapter, spend more time on the underlying concepts before moving to numerical practice.
When time is limited, prioritise classwork questions first and then move to additional practice.
LDR questions should be treated as an important part of your revision and written practice. During the first revision, solve the LDR questions rather than only reading their solutions.
Writing the solution helps you check whether you can:
Identify the correct concept.
Select the relevant information.
Apply the required calculation.
Present the solution correctly.
Complete the question within a reasonable time.
Questions that take unusually long or where you make repeated mistakes should be marked for the next revision.
The second revision should be faster than the first. You already know the concepts, so the focus can move towards recall and application.
During the second revision:
Revisit all important concepts.
Review LDR questions.
Return to questions marked as difficult.
Practise around 2–5 questions per chapter in writing.
Focus on areas where you made mistakes during the first revision.
Use your notes and revision resources instead of starting every chapter from scratch.
The goal is to identify what you still cannot solve confidently and correct it before the final revision.
The third revision should be short and highly focused. You should not attempt to study every chapter in the same depth again.
Use this phase to:
Revise LDR questions.
Review marked difficult questions.
Solve a few additional questions where required.
Recall important concepts quickly.
Practise within strict time limits.
Aim to complete each subject within around 1.5 days during this revision. This shorter window is intentional because the final revision should resemble the pressure and time constraints of the actual examination.
A 90-day study plan works only when the daily targets are specific. Instead of writing “study Costing” as a target, identify the chapters and questions you need to finish that day.
Your target sheet can include:
|
Daily Target |
What to Track |
|
Chapter |
Topic or chapter to complete |
|
Concepts |
Concepts to revise |
|
Questions |
Classwork, homework, LDR or practice questions |
|
Revision |
Previously completed topics to revisit |
|
Review |
Difficult questions or mistakes to check |
Set the target before beginning the day's study and avoid ending the study session without completing it.
At the same time, targets should be challenging but realistic. Setting extremely small targets simply to mark them as complete will not help you make meaningful progress.
Backlogs can quickly reduce the time available for revision. Try to clear pending classes, chapters and questions by 15 October if you are following a revision schedule that begins in early October.
If a large backlog continues beyond that point, reconsider your plan instead of trying to compress every subject into an unrealistic schedule.
For students unable to clear substantial backlogs, focusing on one group may provide more revision time per subject than attempting to divide limited time between both groups.
The exact decision should depend on your preparation level and the amount of syllabus still pending.
Use a chapter-wise Costing compiler after completing your LDR questions to practise RTPs, MTPs, PYQs, important MCQs and other marked questions. Keep your notes, one-shot videos, marathon sessions, LDR questions, compiler, RTPs, MTPs, PYQs and mock tests in one reference sheet so you can access each resource quickly. Mark difficult questions during the first revision and revisit them in the later cycles.
Mock tests should become an important part of the final revision rather than something you attempt only after completing everything.
The third revision can follow an exam-simulation pattern:
1.5 days of revision → Mock test → Analyse performance → Move to the next subject
Try to reproduce the conditions you expect on the examination day. Keep your study and test timings consistent, follow a similar wake-up and meal schedule and attempt the mock without unnecessary interruptions.
This helps you practise both question-solving and exam temperament.
Taking a mock test is only useful if you analyse the result afterwards.
Check:
Which questions you could not solve.
Which concepts caused mistakes.
Where you lost calculation marks.
Which questions took too long.
Whether you completed the paper within the available time.
Which questions should be revised again.
Add the serious mistakes to your marked-question list and revisit them during the remaining revision time.
If you are planning around an average of 10 study hours per day, a chapter-wise time template can help you estimate how much time each revision cycle requires.
|
Revision Phase |
Approx. Total Hours |
Approx. Days at 10 Hours/Day |
|
First Revision |
80 hours |
8 days |
|
Second Revision |
35.5 hours |
3.5 days |
|
Third Revision |
17.5 hours |
1.8 days |
Use these figures as a planning reference rather than a fixed requirement. Some chapters will take longer because of their numerical complexity, while familiar chapters may require less time.
Saving this chapter-wise time template can also help you quickly check whether you are spending too long on one topic.
When revision time is limited, do not spend equal time on every question. Prioritise topics and questions based on your preparation history.
Give additional attention to:
Concepts you have forgotten.
Questions where you made mistakes.
Questions that take too long to solve.
LDR questions.
Previously marked important questions.
RTP, MTP and PYQ questions.
Areas that require repeated numerical practice.
A difficult question that you have already marked is usually more useful during the second and third revisions than repeatedly solving questions you can already answer comfortably.
Each revision should have a different purpose. Repeating the same process three times can waste valuable study time.
1. First Revision: Understand concepts, complete classwork and homework, and solve LDR questions in writing.
2. Second Revision: Recall concepts, revisit LDR and difficult questions, and solve 2–5 questions per chapter.
3. Third Revision: Quickly revise LDR and selected questions while following strict time limits to build exam readiness.
This progression helps you move from detailed learning to quick recall and finally to exam-style execution.
A simple 90-day plan can look like this:
Use the first 48 days for detailed revision. Cover concepts, classwork, homework and LDR questions. Use one-shot videos to refresh chapters and mark difficult questions as you go.
Use the next 24 days for faster revision. Revisit concepts, LDR questions and the difficult questions you marked during the first cycle. Practise 2–5 questions per chapter in writing.
Use the final 12 revision days for quick recall and exam simulation. Spend around 1.5 days per subject, revise LDR and selected questions and follow each subject's revision with a mock test.
The remaining days in the broader 90-day window can be used around classes, festivals, backlog clearance and personal requirements.
A revision plan is useful only when you follow it consistently. Avoid allowing one difficult chapter to disrupt the schedule for several days.
Keep these habits during the preparation period:
Set the next day's target in advance.
Complete the day's target before moving to entertainment or non-essential screen time.
Keep difficult questions marked rather than repeatedly spending hours on one question.
Review your progress at the end of each week.
Adjust the next week's targets if you fall behind.
Keep your revision resources together.
Avoid unnecessary changes to your study approach.
Consistency matters more than trying to create a perfect timetable that is difficult to follow.
Before entering the final stage of preparation, check whether you have:
Completed the Costing syllabus.
Revised every chapter at least once.
Solved LDR questions in writing.
Completed relevant classwork and homework.
Marked difficult questions.
Practised RTPs, MTPs and PYQs.
Completed the second revision.
Attempted mock tests.
Reviewed mistakes from mock tests.
Completed a fast third revision.
If any of these areas remain incomplete, adjust your targets rather than leaving everything for the final few days.
Watch the PW session on the CA Inter Costing 90 Days Strategy to understand how to divide the revision period into multiple cycles, plan daily targets, practise questions and use mock tests for exam preparation.
The CA Inter Costing January 2027 preparation becomes easier to manage when the final 90 days are divided into clear revision cycles. Use the first revision for concepts and detailed question practice, the second for reinforcement and difficult questions, and the third for quick recall and exam simulation.
Keep track of daily targets, use RTPs, MTPs and PYQs, and analyse your mock-test performance regularly.
PW supports your CA Intermediate Costing January 2027 preparation with learning, revision and exam-focused resources to help you prepare for the examination.