UPSC CSAT Reasoning Practice | Master Mental Ability

What the paper actually asks

Two hundred marks, and you need sixty-six

Paper-II is qualifying, not ranking. You need 33% (66 marks out of 200), and a single mark above that adds nothing to your rank. Eighty questions carry 2.5 marks each; a wrong answer costs 0.83. That is the whole scoring rule, and it is the only part of CSAT preparation anyone can state as fact rather than opinion.

What the paper rewards is narrower than it looks:

Reading the question, not the arithmetic. In data sufficiency and statement evaluation the question can be whether a value is determined at all, not what the value is. Then solving for it is work the paper never asked for.
Number sense ahead of formulas. Divisibility invariants, unit-digit cycles and remainder patterns arrive disguised as word problems. A half-remembered formula is slower than a pattern you recognise.
Structures you have met before. Series, syllogisms and relations are a small set of shapes rearranged. Recognising which one is in front of you is built over months of short sessions.

None of that is a trick and none of it is a shortcut. It is the same recognition the rest of this site is about, applied to a paper that only asks you to clear a bar.

Where candidates get disqualified

The Three Fatal CSAT Traps

The bar is fixed; what costs marks on the day is time and the 0.83 penalty.

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Trap 1: The "It's Only 33%" Complacency

Because Paper-II does not count towards rank, it is easy to leave it to the last fortnight. A paper you have not practised on the clock is where 50-50 guesses and 0.83 penalties pile up.

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Trap 2: The Sunk Cost Puzzle Trap

You spend 4 minutes drawing a complex arrangement matrix, but two clues seem contradictory. Instead of taking the 4-minute loss and moving to simple questions, you spend another 4 minutes wrestling with it. One failed question now costs 8 minutes and 2.5 marks.

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Trap 3: Brute-Force Calculation vs Pattern Sight

When asked whether a 15-digit number is divisible by 99 or what remainder is left by 7⁹⁹ divided by 100, long division is the slow road, and the clock allows 90 seconds a question. Questions like these reward a known pattern over long division.

Works offline on Android

Practice anywhere. On Android, practice itself needs no internet.

On Android, all the questions live on your phone, so after install, daily practice costs zero data. The app needs the internet once to start, then at least once a week. In the web app, on a phone or computer, you practise in the browser while you are online.

Android works offline Full-screen web practice Progress saved online Zero data during practice

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In 2007, in his second year at IIT Delhi, Vineesh wrote a book: Master Mental Ability in 30 Days. It has sold year after year ever since, without the publisher ever marketing it.

In the years since, he built other learning products and spent a decade working with children of every background in a holistic learning centre.

CSAT is an elimination gate where overconfidence hurts more than difficulty. MMA trains systematic deduction so you secure your qualifying marks without panic.

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Fifteen minutes a day on analytical deduction and series logic: the 27 net correct answers that clear the 66-mark bar.

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Frequently asked questions

Common questions about UPSC CSAT (Paper-II)

What is the exact qualifying cutoff for UPSC CSAT Paper-II?

As per the official UPSC Civil Services Examination notification, Paper-II is a qualifying paper with minimum qualifying marks fixed at 33%. In an 80-question paper of 200 marks, you need at least 66.00 marks to qualify: 27 correct answers with none wrong give 67.5, while 26 give 65, which falls short.

Do Paper-II marks count towards my rank?

No. The notice makes Paper-II qualifying at 33% (66 of 200) and draws the Mains list on Paper-I marks. Above 66, more marks in Paper-II add nothing; below it, you are not on the Mains list whatever your Paper-I score.

Can I qualify CSAT purely on General Mental Ability and Logical Reasoning without high-level math?

UPSC's notice does not split Paper-II by topic, so this page will not promise a number of questions from any one area. What the notice does say: Paper-II covers comprehension, interpersonal and communication skills, logical reasoning and analytical ability, decision making and problem solving, general mental ability, and basic numeracy and data interpretation, both of those at Class X level. There is no advanced mathematics on that list. The bar is 66 of 200 marks.

Is the app in Hindi? And what language is the paper set in?

The app is fully Hindi if you choose Hindi: the questions, the options and the explanation after each one, not an English app with Hindi labels around it. Both Preliminary papers are set in Hindi as well as English; UPSC's notification says so in as many words, and the 2026 notice carries no English-only section inside CSAT. So the reasoning questions reach you in whichever of the two you read faster.

How much internet does it need?

On the Android app, very little. The questions are on your phone, so you can practise on a train, in a village with no signal, on a phone with no data pack. It needs the internet once to start, then at least once a week to keep your access active; that is also when your progress is saved online. If it goes longer than a week without connecting, practice pauses until it does, and nothing is lost. The web app needs a connection while you practise.

UPSC CSAT Reasoning: the 66 marks Paper-II asks for

CSAT in numbers