Quick Summary
CSS compulsory subjects explained: all six papers, 600 marks, what each paper tests, and how to prepare every compulsory subject the right way.
Category
CSS Guide
Reading Time
9 min read
Updated
November 1, 2026
Every CSS candidate, no matter which optional subjects they choose, must pass the same six compulsory papers. These papers carry half of the written examination, they include the two English papers that filter out the largest number of candidates, and they are where a preparation plan usually succeeds or fails.
This guide lists all six CSS compulsory subjects, explains what each paper actually tests, and shows how to prepare each one without wasting months.
The Six CSS Compulsory Subjects
| Compulsory Subject | Marks | What It Really Tests |
|---|---|---|
| English Essay | 100 | Argument building, structure, grammar, and a clear stance |
| English (Precis & Composition) | 100 | Precis writing, comprehension, grammar, vocabulary, and correction |
| General Science & Ability | 100 | Everyday science concepts plus basic quantitative and mental ability |
| Current Affairs | 100 | Pakistan and world issues, analysis, and informed opinion |
| Pakistan Affairs | 100 | Ideology, history, and the Pakistan movement to the present |
| Islamic Studies / Comparative Study of Major Religions | 100 | Concepts, contemporary issues, and — for non-Muslim candidates — the comparative religion option where applicable |
The compulsory block is fixed for everyone. Your optional subjects — chosen totalling 600 marks from the FPSC groups — are the only part of the written syllabus you select yourself. Before finalising either side of the syllabus, confirm your position in the CSS eligibility guide.
English Essay: The Paper That Decides First
CSS Essay is one of the most decisive papers. Many candidates fail CSS because they ignore Essay until the last month. Essay preparation is not about memorising twenty essays. It is about learning argument building, structure, relevance, coherence, grammar, examples, and conclusion writing.
A strong CSS Essay has a clear stance, a logical outline, a strong introduction, connected body paragraphs, evidence, a counter-argument where needed, and a balanced conclusion. Practise outlines before full essays, and start from day one — this advice runs through the complete CSS preparation guide for a reason.
English (Precis & Composition): The Daily-Practice Paper
The Precis paper rewards routine, not bursts of effort. It covers precis writing, reading comprehension, grammar, vocabulary, pair of words, and sentence correction. A short daily session — one precis, one comprehension passage, a fixed grammar topic — builds this paper steadily. Because both English papers sit in the compulsory block, weak English cannot be compensated by strong optional subjects.
General Science & Ability: Two Papers in One
General Science & Ability combines everyday science — the physical and biological concepts of daily life — with general mental ability: basic arithmetic, percentages, ratios, and logical reasoning. The science half overlaps heavily with one-paper exam preparation, so the Everyday Science material on GK360, including the Everyday Science topic MCQs practice sets, transfers directly. The ability half is a speed skill: it improves only through timed practice.
Current Affairs: Analysis Over Headlines
The Current Affairs paper does not ask what happened; it asks what it means. Preparation means reading daily, maintaining short issue files — Pakistan’s economy, foreign relations, regional politics, global conflicts — and practising structured answers. GK360’s current affairs archive organises material month by month, and the guide on how to prepare current affairs shows how to convert reading into answers.
Pakistan Affairs: A Timeline You Must Own
Pakistan Affairs covers the ideology of Pakistan, the Pakistan movement, and the constitutional and political history of the country after 1947. The reliable method is a timeline: build the sequence of events once, attach causes and consequences to each, and revise from that single structure. It also overlaps with the Pakistan Studies questions of one-paper exams, so Pakistan Studies topic practice strengthens both.
Islamic Studies: Concepts, Not Just Facts
Islamic Studies in CSS goes beyond the one-paper factual level: it expects concepts, contemporary issues, and the relationship of Islam with the West, alongside the foundational knowledge. Candidates from other faiths may take the Comparative Study of Major Religions option where the rules apply. For the factual base, GK360’s Islamic Studies subject bank and topic sets are a solid foundation.
How to Prepare All Six Together
- Start Essay and Precis on day one and never let a week pass without writing.
- Run Current Affairs daily in short sessions; file notes by issue, not by date.
- Build the Pakistan Affairs timeline once, then revise from it.
- Rotate General Science & Ability and Islamic Studies on alternate days.
- Analyse CSS past papers topic by topic so your reading follows what FPSC actually asks.
- Choose books deliberately — the best books for CSS list is organised subject by subject.
Recommended GK360 Practice Route
Pair this guide with the full CSS preparation guide for the written-exam roadmap, and use the MPT past papers and practice sets to clear the screening stage first — the compulsory subjects only matter once the MPT is behind you.
Final Advice
Learn the six compulsory subjects as one system: English for expression, Current and Pakistan Affairs for content, General Science & Ability for breadth and speed, and Islamic Studies for concepts. Prepare them from the first week, measure yourself against past papers, and the written examination becomes a test of your preparation instead of your luck.
FAQs
How many compulsory subjects are there in CSS?
There are six compulsory subjects in CSS: English Essay, English (Precis & Composition), General Science & Ability, Current Affairs, Pakistan Affairs, and Islamic Studies or Comparative Study of Major Religions where applicable.
How many marks do CSS compulsory subjects carry?
Each compulsory subject carries 100 marks, so the compulsory block totals 600 marks. Optional subjects add another 600 marks, making 1,200 written marks, followed by a 300-mark viva voce.
Which CSS compulsory subject is the hardest?
For most candidates it is English Essay, followed by Precis & Composition, because both test produced language rather than recalled facts. That is why both should be practised from the first day of preparation.
Can I choose my CSS compulsory subjects?
No. The six compulsory subjects are fixed for every candidate. Only the optional subjects — totalling 600 marks from the FPSC subject groups — are chosen by the candidate.
Do CSS compulsory subjects overlap with one-paper exams?
Partly. General Science & Ability, Pakistan Affairs, Islamic Studies, and Current Affairs overlap with the one-paper syllabus, so one-paper practice strengthens the compulsory base — but CSS answers are descriptive, so writing practice is still essential.
Apply This Guide
Do not just read. Practice now.
Use this article as a strategy, then test yourself with GK360 solved papers, subject-wise MCQs and mock tests.
