Free practice series
UPSC ISS Mock Test 2026
A free UPSC ISS practice series for the objective Statistics I and Statistics II papers, 80 questions each for 200 marks apiece. Every UPSC ISS online test here is free to attempt and returns a section-wise result the moment you submit.
Both papers are pure statistics and they are weighted identically, 80 questions and 200 marks each, so there is no general-studies section to fall back on and no weaker paper to write off. Every question is worth 2.5 marks and a wrong answer deducts one third of that, which puts break-even at exactly one in four: precisely what a blind guess across four options returns, so guessing at random gains nothing across a long paper and only turns positive once you can rule an option out. With 240 minutes across the two papers you have 90 seconds a question, enough to work rather than recognise.
- Checked tests
- 3
- Full mocks
- 1
- Questions
- 320
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Statistics I and II (Objective)
Start with a full mock
Full Mock Test 1
160 questions · 240 minutes · Review the marking rules before starting.
Sectional testsWork on one section before the full paper.2 tests
How this page is made: the TakeMockTest Editorial Team maintains this series. Every pattern figure below is taken from the official source linked with it and carries the date it was last checked. Questions are written in-house to the published syllabus and audited before release. Read the editorial policy.
UPSC ISS exam pattern
Statistics I and II (Objective)
Official review pendingTakeMockTest covers the two objective Statistics papers of the Indian Statistical Service examination. Each paper is 80 questions for 200 marks in 120 minutes, with 2.5 marks for a correct answer and one third of that, 0.833 marks, deducted for a wrong one; multiple responses count as wrong and an unattempted question scores zero. Papers are English only. The pattern is marked review-pending because the exact paper scheme was read from official-document mirrors rather than directly from the UPSC notification itself, which could be reached only at its archive surface. The Indian Economic Service papers, General English, General Studies and the descriptive Statistics papers are outside this product.
Frequently asked questions
How many UPSC ISS mock tests are available here?
This page currently has 3 syllabus-checked tests for UPSC ISS: 1 full-length mock, and 2 sectional tests.
Are these UPSC ISS tests based on the official pattern?
Yes. Every checked UPSC ISS test matches the official pattern's question count, marks, duration and negative marking, and the source document is linked with the date it was last read. For the paper, that is 160 questions for 400 marks in 240 minutes.
How long does a UPSC ISS mock test take?
A full-length UPSC ISS mock here runs 240 minutes, matching the official working time for the paper it reproduces. The timer starts when you begin and the test submits itself when time runs out, so it is worth starting one only when you can sit it through. The shorter tests on this page run from 120 minutes, for when you do not have a full sitting free.
Do these UPSC ISS mock tests have negative marking?
Yes. Every UPSC ISS test here deducts 0.833 marks for a wrong answer and scores an unanswered question zero, the same as the official scheme it is checked against. Your result breaks out what the deduction cost you, so you can see whether guessing helped or hurt.
Should I start with a full-length UPSC ISS mock or a sectional test?
Start with a full-length mock if you have not sat the whole UPSC ISS paper under its official timer before: it is the only thing here that tells you whether you can finish in time. Move to the 2 sectional tests once the full mock has shown you which section is costing you marks, and use them to rebuild that one section rather than re-sitting the whole paper each time.
Are these UPSC ISS mock tests free?
Yes. All 3 UPSC ISS tests on this page are free to attempt, with no account and no paid tier holding back better questions.