BharatNotes You don't need calculus or trigonometry — CSAT maths is strictly Class X NCERT level. Spend 8 weeks rebuilding fundamentals (numbers, percentages, ratios, time-speed-distance, averages, basic probability), then solve 20 PYQ-style problems daily. Most humanities aspirants reach 30+ maths correct attempts within 90 days.
The honest truth
CSAT maths terrifies humanities aspirants — but the entire syllabus is Class X NCERT and below. The Delhi High Court's Expert Committee, examining the contested 2023 paper, explicitly confirmed that "mathematical questions were confined to Class 10 level only." If you cleared your 10th boards, you have already studied 90% of CSAT maths. The gap is practice and speed, not concept.
Topic-wise weight (last 5 years)
| Sub-topic | Avg questions / year | Priority |
|---|---|---|
| Number System (LCM/HCF, divisibility, remainders) | 8–10 (peaked at 23 in 2024, 25 in 2025) | Critical |
| Percentages, profit-loss, simple/compound interest | 5–7 | High |
| Ratio, proportion, mixtures-alligation | 3–5 | High |
| Time-speed-distance, time-work, pipes-cisterns | 4–6 | High |
| Averages, ages | 2–3 | Medium |
| Mensuration, geometry basics | 2–3 | Medium |
| Permutation-combination, probability | 2–4 | Medium |
| Data sufficiency / DI | 6–10 | High |
Number System is the single most important maths topic for CSE 2026. CSAT 2024 had 23 Number System questions; CSAT 2025 had 25. Build this first.
The eight-week rebuild plan
Weeks 1–2: Number system + percentages
- LCM, HCF, divisibility rules, remainders, surds, indices.
- Percentage increase/decrease, successive percentages.
- Source: NCERT Class 8–10 maths chapters.
Weeks 3–4: Ratio, proportion, averages
- Ratio, proportion, partnership, mixtures-alligation.
- Simple averages, weighted averages, ages.
Weeks 5–6: Time-speed-distance + time-work
- Speed-distance-time, trains, boats-streams, relative speed.
- Pipes-cisterns, work-efficiency.
Week 7: Profit-loss + simple/compound interest
Week 8: Mensuration, permutation-combination basics, probability, data sufficiency
Reasoning prep — even simpler
Reasoning is logic puzzles, not maths. Cover these in 3 weeks:
- Blood relations, direction sense, seating arrangements
- Number/letter series, coding-decoding
- Clocks, calendars, cubes & dice
- Syllogisms and statement-conclusion
Recommended resources
- R.S. Aggarwal — Quantitative Aptitude (cover-to-cover is overkill; pick CSAT-relevant chapters)
- Disha CSAT Manual or Tata McGraw Hill CSAT Paper II for full PYQ coverage
- Mrunal.org aptitude lectures — free, gold standard for non-math aspirants
- CSAT PYQ 2014–2025 — non-negotiable
Worked scenario — humanities aspirant, 90-day plan
Starting baseline (mock 1, Day 1): 6 maths correct, 12 wrong, 17 skipped, RC 18 correct.
Day 1 score: (6+18) × 2.5 − (12+3) × 0.833 = 60 − 12.5 = 47.5 (fails).
After 8 weeks of structured maths + daily RC:
Mock score (Day 60): 22 maths correct, 5 wrong, RC 24 correct, 2 wrong, reasoning 10 correct, 2 wrong.
Net: (22+24+10) × 2.5 − (5+2+2) × 0.833 = 140 − 7.5 = 132.5 (comfortably qualifies, 2x the bar).
This trajectory is not aspirational — it is replicated routinely by Mrunal cohort tracker data.
Topper voices
Anudeep Durishetty (AIR 1, CSE 2017, humanities background): "I struggled with CSAT initially. The trick was to stop trying to be a maths whiz and instead practise the same PYQ chapters again and again — Number System, Percentages, TSD. Speed comes from repetition, not from new topics."
Shubham Kumar (AIR 1, CSE 2020): "Don't take CSAT lightly even if you're confident in maths. I revised CSAT topics weekly. The exam tests stamina, not just knowledge."
Daily routine
- 30 min concept revision (one micro-topic a day)
- 30 min focused practice (15–20 problems)
- 15 min PYQ practice (one section from a past CSAT)
Mentor's note
The fear is bigger than the syllabus. Three months of daily 75-minute maths practice — humanities aspirants routinely go from 5 correct to 30 correct attempts. The plan works because the syllabus is finite and PYQs are publicly available. The only thing that fails is half-hearted prep.
