10+2 level focus — do not over-prepare for CGL depth
CHSL quant stays at 10+2 NCERT level. Prioritise arithmetic speed, basic algebra and English comprehension over advanced CGL topics.

CHSL strategy · 2026
Structured CHSL preparation for LDC, JSA and DEO posts — prelims study order, typing and data-entry practice and weekly mock rhythm.
Official references
Section-wise plan
CHSL quant stays at 10+2 NCERT level. Prioritise arithmetic speed, basic algebra and English comprehension over advanced CGL topics.
Under the cited CHSL 2025 notice, LDC/JSA typing requires 35 WPM in English or 30 WPM in Hindi. DEO uses key depressions per hour: 8,000 for most posts and 15,000 for the specified departments, assessed in a 15-minute task. These are different measures. Begin accuracy drills early and confirm the standards and exemptions in your own cycle’s notification; the typing tool is practice, not an official skill-test simulation.
Take CHSL mocks bi-weekly in months 1–3, then weekly in the final month. Review reasoning and quant mistakes same day.
Month-wise template
Generic plan — adjust based on your exam notification date from the official portal.
| Phase | Focus |
|---|---|
| Month 1–2 | NCERT maths, English grammar, reasoning basics, static GK |
| Month 3 | CHSL mocks, Post-specific typing or data-entry drills |
| Month 4+ | Weekly mocks, weak-topic revision, notice checks on job feed |
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SSC CHSL 2026
An SSC CHSL 2026 course book in 10 chapters, written to the Commission's 2026 notice for LDC/JSA, DEO and DEO Grade 'A': the two-tier scheme, marking and scoring strategy, quantitative aptitude, general intelligence (verbal and non-verbal, with drawn figures), English, general awareness, the Tier-II Computer Knowledge Test, and the Skill Test and Typing Test with original practice passages and a final revision plan. Original solved examples and practice questions throughout.
Common questions
Yes. CHSL is 10+2 level with lower quant depth. DEO posts use a data-entry skill test; LDC/JSA use a typing test. Use CHSL-specific mocks rather than only CGL tests.