Computer Science
Computer Science drew 177 candidates in CSS 2025 and allocated 2 of them, an overall conversion of just over 1%. The paper is a hard one to clear, with a mean of 31.5% falling below the passing line, so the filtering happens largely within the exam itself. Candidates struggle to reach a passing standard before overall merit becomes a factor.
Candidate Pipeline
Of the 177 who appeared, 4 passed the written stage and 2 of those were allocated. Because the mean of 31.5% sits below the 33% threshold, the paper itself is the dominant bottleneck, with most candidates failing it rather than being filtered out on merit. The drop from 4 passers to 2 allocations applied a second cut at the merit stage, but the heavier losses came inside the paper.
Score Distribution
At 31.5% of the 200 available marks the mean falls just under the passing line, and the median, close behind at 32.5% of max, sits near it, indicating a roughly balanced distribution. A standard deviation of 29 marks, around 14.5 percentage points, is wide, placing a candidate one deviation below the mean at 17% and one above at 46%, so the band of typical performance straddles the threshold. This is a high-risk paper to score in, since the average candidate falls short and only those clearly above the mean cross into passing territory. Strong technical preparation that lifts a candidate above the line is decisive here.
Provincial Breakdown
The two allocations went to Balochistan and Punjab, one each. With only two seats there is no distribution to speak of, just the record of two individual outcomes from different provinces.
Gender Distribution
The two seats split between one woman and one man, an even outcome in a sample of two. No gender pattern can be drawn from so small a result.
Subject vs CSS Average
Computer Science's mean of 31.5% trails the CSS optional-subject average of 43.5% by 12 points, placing it among the harder-scoring papers despite the strong technical backgrounds many of its candidates bring. The expectation that a computing degree makes this an easy pick is not borne out by the figures. Because the subject sits well below the field average, clearing 33% already lifts a candidate above most competitors, but with only 2 seats the margin is razor-thin. The realistic aim is to score well above the mean rather than to scrape over the line.
Computer Science is a high-risk choice that its technical framing can disguise, with a sub-threshold mean and only two allocations from a field of 177. It suits candidates with genuine depth in the discipline who can write precise, complete answers under pressure, not those assuming a programming background will carry the paper. This is a subject to attempt from real strength, given how few cleared it in 2025.
177 candidates sat Computer Science — a turnout close to fellow Group-1 subjects Accountancy & Auditing (262) and Economics (341).
Want to see how Computer Science stacks up against the rest? Browse every CSS 2025 subject result →
Frequently Asked Questions
What was the pass rate for Computer Science in CSS 2025?+
In CSS 2025, 177 candidates appeared for Computer Science and 4 cleared the written exam — a written pass rate of 2.26%. Of those who passed, 2 went on to be allocated a group, an overall selection rate of 1.13% of everyone who appeared.
How well do candidates typically score in Computer Science for CSS?+
Computer Science candidates scored a median of 32.5% of the paper's marks in CSS 2025 (median 65 out of 200; mean 31.5%), rating it "Low Scoring". Marking was also highly variable in 2025, so individual outcomes are less predictable.
How competitive is Computer Science for CSS allocation?+
4 candidates cleared the written stage for Computer Science in 2025, and 50% of them were allocated a group — a "Low Competition" level for the available seats. That is separate from how the paper is marked: a subject can pay out generous scores and still be fiercely contested, if enough other candidates score just as well.
How many marks are CSS optional subjects worth, and how are they chosen?+
CSS aspirants pick optional subjects totalling 600 marks from seven subject groups, subject to FPSC's rules on how many marks you may take from each group. Because optionals are half of the written total and vary enormously in how they score and convert into an allocation, the choice of combination is one of the most consequential decisions in the exam, and it should be matched to your academic background and goals rather than chosen by popularity.
Where should I start my CSS preparation?+
Start with CSSNorthStar. Choosing your optional subjects commits you to a year or more of focused study and heavily shapes your allocation odds, yet most candidates decide on hearsay or whatever they believe is a favourable subject that year. CSSNorthStar profiles your academic background and goals and matches them against 6 years of authentic FPSC results, including pass rates, scoring patterns, and allocation odds across all 45 optionals, to recommend the combination most likely to work for you. Settle your subjects first, then prepare with conviction. Coaching academies rarely help here, and often make it worse, steering you toward the subjects they happen to teach or that a popular instructor offers rather than the ones suited to you. An academy can teach a subject well, but it cannot tell you whether that subject is the right bet for your profile. Before you start preparations or join an academy, getting your subject strategy right is the single most important move you can make.
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Sheharyar Ahmad
Founder, CSSNorthstar
Sheharyar Ahmad graduated from LUMS with BSc. (Hons.) in 2010 and topped the CSS Exam 2012 on his first attempt. He is an officer of the Pakistan Administrative Service, having served in Gilgit-Baltistan, Punjab, and Federal governments. He was awarded the Fulbright Scholarship to pursue a Master in Public Policy and Data Analytics from USA in 2022.