Karka

Course

SSC CGL and CHSL Tier-I: complete preparation

Reasoning, General Awareness, Quantitative Aptitude and English for SSC CGL and CHSL Tier-I: short lessons with diagrams and timed Sprints for every topic, then diagnostic, topic, sectional and full mock tests that draw a fresh paper every time. Original practice questions; not previous-year papers.

Professional electiveCoreCertificate
34 modules 304 lessons ~46.2h of material

First three lessons free. Full access with Karka Pass from ₹49 for 7 days (7 days ₹49 · 30 days ₹199 · 1 year ₹1,999).

SSC CGL and CHSL Tier-I: complete preparation

Curriculum

What's inside

34 modules · 304 lessons

  1. 01

    Start here

    4 lessons
    • Start here: how SSC CGL and CHSL Tier-I work
    • Start here: how to use this course
    • Start here: negative marking and smart guessing
    • Start here: reading your mock result
  2. 02

    Arithmetic I: percentage, profit, loss and discount

    8 lessons
    • Percentage: change, successive changes and shares
    • Sprint: Percentageexam sprint
    • Recall: percentageflashcard sr
    • Match: more than, less thanmatch pairs
    • Profit, loss and discount: CP, SP, marked price and offers
    • + 3 more lessons
  3. 03

    Arithmetic II: ratio, proportion and partnership

    8 lessons
    • Ratio and proportion: parts, chains and variation
    • Sprint: Ratio and proportionexam sprint
    • Recall: ratio and proportionflashcard sr
    • Order: join two ratiossequence order
    • Partnership: capital times time, pay first, changes in the year
    • + 3 more lessons
  4. 04

    Arithmetic III: interest, mixtures and alligation

    8 lessons
    • Simple and compound interest: amounts, compounding and the CI-SI difference
    • Sprint: Simple and compound interestexam sprint
    • Recall: simple and compound interestflashcard sr
    • Match: simple and compound interestmatch pairs
    • Mixtures and alligation: weighted averages, the cross method and replacement
    • + 3 more lessons
  5. 05

    Arithmetic IV: time and work, speed, time and distance

    8 lessons
    • Time and work: units of work, efficiency, pipes and wages
    • Sprint: Time and workexam sprint
    • Recall: time and workflashcard sr
    • Order: the units method for two workerssequence order
    • Speed, time and distance: units, average speed, trains and streams
    • + 3 more lessons
  6. 06

    Maths gap I: triangles and geometry

    4 lessons
    • Triangles: four centres, three angle rules, two radius formulas
    • Sprint: Triangles and their centresexam sprint
    • Recall: triangles and their centresflashcard sr
    • Match: centres and special casesmatch pairs
  7. 07

    Maths gap II: similar triangles and circles

    8 lessons
    • Similar triangles: one ratio, four uses
    • Sprint: Similar triangles and congruenceexam sprint
    • Recall: similar triangles and congruenceflashcard sr
    • Match: situation and resultmatch pairs
    • Circles: chords, tangents and angles
    • + 3 more lessons
  8. 08

    Maths gap III: trigonometry and heights and distances

    8 lessons
    • Trigonometry: ratios, complementary angles and identities
    • Sprint: Trigonometric ratios and identitiesexam sprint
    • Recall: trigonometric ratios and identitiesflashcard sr
    • Match: ratios at standard anglesmatch pairs
    • Heights and distances: one right triangle at a time
    • + 3 more lessons
  9. 09

    Maths gap IV: mensuration

    8 lessons
    • Mensuration: triangles, quadrilaterals, circles and sectors
    • Sprint: Mensuration: plane figuresexam sprint
    • Recall: plane figuresflashcard sr
    • Match: figure and areamatch pairs
    • Mensuration: cuboids, cylinders, cones, spheres and pyramids
    • + 3 more lessons
  10. 10

    Maths gap V: algebraic identities, surds and indices

    9 lessons
    • Algebraic identities: from one equation to the next
    • Sprint: Algebraic identitiesexam sprint
    • Recall: algebraic identitiesflashcard sr
    • Match: what you know and what you wantmatch pairs
    • Surds and indices: rationalise, match the base, compare
    • + 4 more lessons
  11. 11

    Maths gap VI: linear equations, HCF, LCM and remainders

    8 lessons
    • Linear equations: slope, intercepts and where lines meet
    • Sprint: Linear equations and their graphsexam sprint
    • Recall: linear equations and their graphsflashcard sr
    • Match: lines, slopes and solutionsmatch pairs
    • HCF, LCM and remainders: factors, cycles and congruences
    • + 3 more lessons
  12. 12

    Maths gap VII: averages and spread

    8 lessons
    • Averages: mean, median and mode
    • Sprint: Mean, median and modeexam sprint
    • Recall: mean, median and modeflashcard sr
    • Order: median of grouped datasequence order
    • Spread: variance, standard deviation and coefficient of variation
    • + 3 more lessons
  13. 13

    Maths gap VIII: charts and probability

    8 lessons
    • Reading tables, histograms, polygons and pie charts
    • Sprint: Tables, graphs and chartsexam sprint
    • Recall: tables, graphs and chartsflashcard sr
    • Match: chart types and what they showmatch pairs
    • Probability: count outcomes, then add or multiply
    • + 3 more lessons
  14. 14

    English I: subject-verb agreement and tenses

    8 lessons
    • Making the verb agree with its subject
    • Sprint: Subject-verb agreementexam sprint
    • Recall: subject-verb agreementflashcard sr
    • Match: the rule that decides the verbmatch pairs
    • Choosing the right tense and verb form
    • + 3 more lessons
  15. 15

    English II: articles, prepositions and linking words

    9 lessons
    • Using a, an, the and quantity words correctly
    • Sprint: Articles and determinersexam sprint
    • Recall: articles and determinersflashcard sr
    • Match: the clue and its correct phrasematch pairs
    • Choosing prepositions and linking words
    • + 4 more lessons
  16. 16

    English III: voice and narration

    10 lessons
    • Changing between active and passive voice
    • Sprint: Active and passive voiceexam sprint
    • Recall: active and passive voiceflashcard sr
    • Match: the active verb and its passivematch pairs
    • Order: changing active to passivesequence order
    • + 5 more lessons
  17. 17

    English IV: error patterns and spelling

    8 lessons
    • Fixing pronouns, comparisons and lists
    • Sprint: Sentence improvement and common errorsexam sprint
    • Recall: pronouns, comparisons and listsflashcard sr
    • Match: the wrong form and its fixmatch pairs
    • Spelling and look-alike words
    • + 3 more lessons
  18. 18

    English V: vocabulary, idioms and one-word substitution

    8 lessons
    • Words with similar and opposite meanings
    • Sprint: Synonyms and antonymsexam sprint
    • Recall: synonyms and antonymsflashcard sr
    • Match: words with a synonym or an antonymmatch pairs
    • Idioms, phrases and one-word substitution
    • + 3 more lessons
  19. 19

    English VI: para jumbles, cloze and comprehension

    9 lessons
    • Arranging sentences and filling gaps
    • Sprint: Para jumbles and clozeexam sprint
    • Recall: para jumbles and clozeflashcard sr
    • Match: linking words and what they domatch pairs
    • Order: a paragraph held together by first, second, third and finallysequence order
    • + 4 more lessons
  20. 20

    Reasoning I: series and coding

    9 lessons
    • Finding the rule in a series
    • Sprint: Number and letter seriesexam sprint
    • Recall: number and letter seriesflashcard sr
    • Match: series and rulematch pairs
    • Cracking letter and word codes
    • + 4 more lessons
  21. 21

    Reasoning II: analogy, classification and operations

    8 lessons
    • Finding the link in pairs and groups
    • Sprint: Analogy and classificationexam sprint
    • Recall: analogy and classificationflashcard sr
    • Match: word pair and linkmatch pairs
    • Working with changed signs and new operations
    • + 3 more lessons
  22. 22

    Reasoning III: syllogisms, Venn diagrams and deduction

    8 lessons
    • Syllogisms and counting with Venn diagrams
    • Sprint: Syllogisms and Venn diagramsexam sprint
    • Recall: syllogisms and Venn diagramsflashcard sr
    • Match: statements and conclusionmatch pairs
    • Drawing certain conclusions
    • + 3 more lessons
  23. 23

    Reasoning IV: relations and directions

    8 lessons
    • Reading family relationships
    • Sprint: Blood relationsexam sprint
    • Recall: blood relationsflashcard sr
    • Match: relation and its namematch pairs
    • Tracking a walk on a map
    • + 3 more lessons
  24. 24

    Reasoning V: ranking and seating

    8 lessons
    • Counting positions in a row and in a ranking
    • Sprint: Ranking and orderexam sprint
    • Recall: ranking and orderflashcard sr
    • Match: position from the left and from the rightmatch pairs
    • Seating people from clues
    • + 3 more lessons
  25. 25

    Reasoning VI: matching, folds, mirrors and counting

    8 lessons
    • Matching, indexing and classifying codes
    • Sprint: Matching, indexing and codesexam sprint
    • Recall: matching, indexing and codesflashcard sr
    • Match: code and its patternmatch pairs
    • Folding, mirror images, cubes and counting figures
    • + 3 more lessons
  26. 26

    General Awareness I: the Constitution and the Union government

    12 lessons
    • The Constitution, rights, duties and directive principles
    • Sprint: Constitution and Fundamental Rightsexam sprint
    • Recall: the Constitution and Fundamental Rightsflashcard sr
    • Match: Fundamental Rights Articlesmatch pairs
    • Match: Directive Principlesmatch pairs
    • + 7 more lessons
  27. 27

    General Awareness II: ancient and medieval India

    15 lessons
    • Ancient India: the Harappans, the Vedas, Buddhism and the Guptas
    • Sprint: Ancient Indiaexam sprint
    • Recall: Ancient Indiaflashcard sr
    • Match: Harappan sitesmatch pairs
    • Match: visitors, writers and rulersmatch pairs
    • + 10 more lessons
  28. 28

    General Awareness III: modern India and the economy

    10 lessons
    • From the Company to independence
    • Sprint: Modern India and the freedom struggleexam sprint
    • Recall: modern India and the freedom struggleflashcard sr
    • Match: Acts and what they changedmatch pairs
    • Order: events from Plassey to Quit Indiasequence order
    • + 5 more lessons
  29. 29

    General Awareness IV: geography

    10 lessons
    • Rivers, mountains, soils and borders of India
    • Sprint: The geography of Indiaexam sprint
    • Recall: the geography of Indiaflashcard sr
    • Match: rivers to where they risematch pairs
    • Order: India's land borders, longest firstsequence order
    • + 5 more lessons
  30. 30

    General Awareness V: general science

    11 lessons
    • Units, light, electricity, acids and materials
    • Sprint: Physics and chemistry in daily lifeexam sprint
    • Recall: physics and chemistry in daily lifeflashcard sr
    • Match: quantities to SI unitsmatch pairs
    • Match: alloys and compounds to what they arematch pairs
    • + 6 more lessons
  31. 31

    Current affairs: October 2026

    2 lessons
    • Current affairs: October 2026
    • Sprint: Current affairs October 2026exam sprint
  32. 32

    Current affairs: September 2026

    2 lessons
    • Current affairs: September 2026
    • Sprint: Current affairs September 2026exam sprint
  33. 33

    Tests and mocks

    40 lessons
    • Diagnostic test: find your weak areas firstmock exam
    • Daily quiz: 10 questions, 6 minutesmock exam
    • Topic practice: Number and letter seriesmock exam
    • Topic practice: Analogymock exam
    • Topic practice: Classification (odd one out)mock exam
    • + 35 more lessons
  34. 34

    Revision notes

    4 lessons
    • Revision: Quantitative Aptitude on one page
    • Revision: Reasoning on one page
    • Revision: General Awareness on one page
    • Revision: English on one page

The shape of it

How this course works

Short lessons

304 lessons across 34 modules, each small enough to finish in one sitting.

Practice as you go

Every lesson ends with a small space for what you noticed — the doing is the learning.

A certificate at the end

Finish the course and earn a certificate anyone can verify with a link.

Ready when you are.

Make an account and this course opens up — your progress is saved from the very first lesson.