CDS 120-Day Revision Strategy for OTA & IMA | Maths & GAT English Plan
Prepare for CDS 2025 with Rosemary Institute’s 120-day smart revision plan – separate strategies for OTA and IMA aspirants covering Mathematics and GAT English for top scores!
For IMA Aspirants
(IMA aspirants appear for all three papers – English, GK, and Mathematics)
Subject-Wise Breakdown:
Mathematics (100 Marks)
Goal: 65+ Marks
Important Topics:
- Algebra (Quadratic equations, Complex numbers)
- Trigonometry (Heights and Distances)
- Geometry (Circles, Triangles, Lines)
- Mensuration (2D and 3D)
- Statistics and Data Interpretation
- Number System (LCM, HCF, Remainders)
- Time, Speed and Distance, Time and Work
- Simple and Compound Interest, Profit and Loss
- Probability, Permutation and Combination
120-Day Strategy:
Phase 1 (Days 1–40):
- Master NCERT 10th, 11th basics
- Focus on concept clarity and important formulas
- Solve topic-wise easy-level questions
Phase 2 (Days 41–80):
- Advance Practice: Moderate to Difficult Level
- Solve 3–5 previous years’ question papers
- Daily 2 topics revision + 30 MCQs solving
Phase 3 (Days 81–110):
- Full-length Maths Mocks (alternate days)
- Revision of short tricks, tips
- Maintain a “Mistake Notebook” for revision
Phase 4 (Days 111–120):
- Final revision of formulas
- Practice 5 Full-Length Mock Tests + error review
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English (100 Marks)
Goal: 80+ Marks
Important Topics:
- Vocabulary (Synonyms, Antonyms, Cloze Test)
- Grammar (Spotting Errors, Sentence Improvement)
- Reading Comprehension
- Para Jumbles
- Fill in the Blanks
120-Day Strategy:
Phase 1 (Days 1–40):
- Strengthen Grammar: Rules + Practice Exercises
- Build Vocabulary: Learn 15-20 new words daily
- Solve basic-level Reading Comprehensions
Phase 2 (Days 41–80):
- Previous Year Papers solving (focus on GMA topics)
- Sectional tests on Vocabulary + Grammar separately
Phase 3 (Days 81–110):
- Full English Mock Tests every 3 days
- Focus on weak areas (use error log sheets)
Phase 4 (Days 111–120):
- Vocabulary recap
- Solve at least 5 Full-Length English Mocks
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For OTA Aspirants
(OTA aspirants appear for only English + GK — no Maths)
Subject-Wise Breakdown:
English (100 Marks)
Goal: 85+ Marks (higher accuracy needed for OTA!)
Same Topics as IMA English, but even more emphasis on:
- Advanced Grammar error detection
- Reading Comprehension speed
- Strengthening Synonyms-Antonyms + One Word Substitution
120-Day Strategy:
Phase 1 (Days 1–40):
- Grammar rulebook revision
- Vocabulary-building (15-20 words/day)
- Small comprehension exercises
Phase 2 (Days 41–80):
- Solve Previous Year CDS English Papers
- Weekly sectional tests: Grammar & RC separately
Phase 3 (Days 81–110):
- Full Mock Tests twice per week
- Track and improve wrong question patterns
Phase 4 (Days 111–120):
- Final flashcard revision (Vocabulary + Idioms)
- 5 Full-Length English mocks with detailed analysis
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Ideal Daily Timetable for Both OTA & IMA Aspirants
Time Slot | Task |
6:00 AM – 8:00 AM | Grammar Rules + Vocabulary Learning |
10:00 AM – 12:00 PM | Mathematics (only for IMA) / English Comprehension Practice |
4:00 PM – 6:00 PM | PYQs + Practice Sets Solving |
8:00 PM – 9:00 PM | Mock Test Analysis + Revision |
Final Key Tips:
- Previous Year Papers = Goldmine. Solve at least the last 10 years.
- Mock Tests = Key to improving speed + accuracy.
- Revision Cycles = Every 30 days, complete 1 round of revision.
- GK (for both) = Spend at least 30 min daily for Current Affairs prep (if you want, I can give a GK strategy separately).