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-stage prep for DEO 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.
DEO aspirants should begin typing practice in month 2 using the free CPCT typing tool. Target consistent 35 WPM with accuracy before the skill test stage.
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, DEO typing drills if applicable |
| 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 add a typing skill test. Use CHSL-specific mocks rather than only CGL tests.