APSC Syllabus 2026: Complete Prelims, Mains & Interview Breakdown

The Assam Public Service Commission's Combined Competitive Examination (CCE) follows the same three-stage format as UPSC — Prelims, Mains, Interview — but layers in a dedicated Assam component that runs through nearly every paper, not just one. Underestimating that layer is probably the single most common mistake candidates make, especially those coming in with a UPSC-first mindset. Here's the complete syllabus, paper by paper.

The Exam Structure, at a Glance

The APSC CCE selects candidates for the Assam Civil Service, Assam Police Service, and a range of other allied state services, through three stages:

1. Preliminary Examination — objective, used purely to screen candidates for Mains
2. Main Examination — descriptive, six papers, the stage that actually determines your rank
3. Interview (Viva-Voce) — added directly to your Mains score for the final merit list

One structural point that trips up a lot of aspirants: Prelims marks don't carry forward into your final ranking at all. They exist only to decide who advances to Mains. Everything that determines where you land on the final list happens in Mains and the Interview.

Prelims Syllabus: GS Paper I and CSAT

GS Paper I is 100 questions worth 200 marks, and this is the paper that actually determines whether you qualify for Mains. It covers History, Geography, Polity, Economy, Science and Technology, Environment and Ecology, Current Affairs, and — critically — Assam GK woven throughout rather than sitting as a separate section. Expect a consistent pattern here: History, Geography, and Current Affairs tend to dominate the paper year over year, which is exactly why solving past papers matters more for APSC than it might for other exams — the weightage pattern is genuinely predictable if you look at several years together.

CSAT Paper II is 80 questions worth 200 marks, covering reasoning, basic numeracy, comprehension, and general mental ability. This paper is qualifying only — you need 33% to clear it, but the score itself has no bearing on your Prelims rank. A lot of candidates either over-prepare for CSAT at the expense of GS Paper I, or under-prepare and risk not clearing the 33% threshold. Neither is the right calibration — treat CSAT as a bar to clear, not a paper to optimize.

Negative marking applies to both papers: each incorrect answer costs you 0.25 marks, so calculated guessing matters here the same way it does in any objective exam.

Mains Syllabus: Six Papers, No Optional Subject

This is where APSC has diverged meaningfully from its older pattern, and it's worth being explicit about the change: APSC no longer has an optional subject. Every candidate writes the same six papers, for a combined 1,500 marks. If you're referencing older prep material or a coaching syllabus that still lists optional subjects like History, Political Science, or Public Administration, that material is outdated — this shift brought APSC in line with UPSC's revised Mains pattern.

The six Mains papers break down as follows:

• Essay — 200 marks. Tests structured, coherent writing on a broad theme rather than technical subject knowledge.
• General Studies I — History, Geography, and Culture, including Assam's own historical and cultural trajectory alongside the national narrative.
• General Studies II — Polity, Governance, and International Relations, covering the constitutional and administrative framework at both the national and state level.
• General Studies III — Economy, Environment, and Science & Technology, with particular attention to how these play out in Assam's specific economic and ecological context.
• General Studies IV — Ethics, Integrity, and Aptitude, testing applied ethical reasoning through case studies rather than theoretical definitions.
• General Studies V — the dedicated Assam-specific paper, covering the state's history, culture, geography, economy, and current affairs in depth.

Each GS paper carries roughly 250-300 marks with a three-hour duration, and the format mixes descriptive and, in places, objective-style questions.

Where Assam-Specific Content Actually Shows Up

It's worth being direct about this, because it's the part of the syllabus most likely to catch a UPSC-trained candidate off guard: Assam content isn't confined to GS Paper V. It runs through GS Paper I (Assam's history and culture alongside national history), GS Paper III (the state's specific economic and environmental issues), and, as already covered, it's baked into GS Paper I at the Prelims stage too. Treating "Assam GK" as a single, separate subject to prepare at the end of your timeline is a common and costly mistake — it needs to be integrated into your preparation for nearly every paper, not bolted on afterward.

Interview: The Final 180 Marks

The Interview, or Viva-Voce, carries 180 marks and is added directly to your Mains score to produce the final merit list — there's no separate cutoff to clear here beyond simply reaching the interview stage. It's designed to assess personality, communication, decision-making under pressure, and overall suitability for administrative work, rather than testing subject knowledge you've already demonstrated in writing.

The Bottom Line

The APSC CCE syllabus rewards candidates who stop treating it as a smaller, regional version of UPSC and start treating it as its own exam with its own weightage pattern — particularly around how consistently Assam-specific content threads through nearly every paper rather than sitting in one isolated section. Build your preparation timeline around that reality from the start, and the six-paper Mains structure and Assam-heavy Prelims stop feeling like an added burden and start feeling like exactly what they are: a predictable, well-documented pattern that rewards structured preparation over last-minute cramming.