A UPSC IES ISS mock test from Toppersexam.com is a practice paper based on the latest exam pattern and syllabus, designed to help you assess your preparation level.
UPSC IES ISS Free Mock Test
Crack the UPSC IES ISS Mock Test 2026 with the help of an online Test series or a free mock test. Every sample paper in the UPSC IES ISS Exam has a designated weight, so do not miss out on any paper. Prepare for the UPSC IES ISS mock test and check your test scores.
UPSC IES ISS Syllabus 2026, Exam Pattern
UPSC IES/Indian Statistical Service Syllabus 2026, Exam Pattern, Exam Date 2026
Detail Information about UPSC has published notification 2026 for the recruitment of IES/ISS vacancies. Those Candidates who are Interested to the following vacancy and completed all Eligibility Criteria can read the Notification & Apply Online. In this page we provide the Complete Syllabus of this Recruitment with Latest Update Exam Pattern and the Exam Date also.
UPSC IES ISS Syllabus 2026 - Overview
UPSC IES ISS Syllabus 2026 - Overview
| Origination Name | Union Public Service Commission(UPSC) |
| Name of Post | Indian Economic Service (IES)/Indian Statistical Service (ISS) |
| Total Post | 44 |
| Application Mode | Online |
| Category | Syllabus and Exam Pattern |
| Official Website | upsconline.nic.in |
UPSC IES ISS Syllabus 2026
General Economics I : Theory of Consumer’s Demand, Theory of Production, Welfare Economic, Theory of Value, Theory of Distribution, Quantitative Methods in Economics.
General Economics II : Economic Thought, the Concept of National Income and Social Accounting, Theory of Employment, Money & Finance, Financial and Capital Market, Economic growth and development, International Economics, Balance of Payments, Global Institutions.
General Economics III : Public Finance, Environmental Economics, Industrial Economics, State, market, and planning.
Indian Economics : History of development & Planning, Federal Finance, Budgeting, Poverty, unemployment, and Human Development, Agriculture, The strategy of Industrial development, Labour, Foreign Trade, Money and Banking, Inflation.
UPSC ISS Syllabus 2026
General Studies : Current Events -National & International, Indian Geography, Polity & Governance, Indian History, Indian Polity, Environmental Studies, Indian Constitution, Science & Technology, etc.
General English : Passages, Precise Writing, Essays, Comprehension, Antonyms, Synonyms, Letter Writing etc.
Statistics-I :
(i) Probability:
Classical and axiomatic definitions of Probability and consequences. Law of total probability, Conditional probability, Bayes' theorem and applications. Discrete and continuous random variables. Distribution functions and their properties.
Standard discrete and continuous probability distributions - Bernoulli, Uniform, Binomial, Poisson, Geometric, Rectangular, Exponential, Normal, Cauchy, Hyper geometric, Multinomial, Laplace, Negative binomial, Beta, Gamma, Lognormal. Random vectors, Joint and marginal distributions, conditional distributions, Distributions of functions of random variables. Modes of convergences of sequences of random variables - in distribution, in probability, with probability one and in mean square. Mathematical expectation and conditional expectation. Characteristic function, moment and probability generating functions, Inversion, uniqueness and continuity theorems. Borel 0-1 law, Kolmogorov's 0-1 law. Tchebycheff's and Kolmogorov's inequalities. Laws of large numbers and central limit theorems for independent variables.
(ii) Statistical Methods:
Collection, compilation and presentation of data, charts, diagrams and histogram. Frequency distribution. Measures of location, dispersion, skewness and kurtosis. Bivariate and multivariate data. Association and contingency. Curve fitting and orthogonal polynomials. Bivariate normal distribution. Regression-linear, polynomial. Distribution of the correlation coefficient, Partial and multiple correlation, Intraclass correlation, Correlation ratio.
Standard errors and large sample test. Sampling distributions of sample mean, sample variance, t, chi-square and F; tests of significance based on them, Small sample tests.
Non-parametric tests-Goodness of fit, sign, median, run, Wilcoxon, Mann-Whitney, WaldWolfowitz and Kolmogorov-Smirnov. Order statistics-minimum, maximum, range and median. Concept of Asymptotic relative efficiency.
(iii) Numerical Analysis:
Finite differences of different orders: A, E and D operators, factorial representation of a polynomial, separation of symbols, sub-division of intervals, differences of zero. Concept of interpolation and extrapolation: Newton Gregory's forward and backward interpolation formulae for equal intervals, divided differences and their properties, Newton's formula for divided difference, Lagrange’s formula for unequal intervals, central difference formula due to Gauss, Sterling and Bessel, concept of error terms in interpolation formula. Inverse interpolation: Different methods of inverse interpolation.
Numerical differentiation: Trapezoidal, Simpson’s one-third and three-eight rule and Waddles rule.
Summation of Series: Whose general term (i) is the first difference of a function (ii) is in geometric progression.
Numerical solutions of differential equations: Euler's Method, Milne’s Method, Picard’s Method and Runge-Kutta Method.
(iv) Computer application and Data Processing:
Basics of Computer: Operations of a computer, Different units of a computer system like central processing unit, memory unit, arithmetic and logical unit, input unit, output unit etc., Hardware including different types of input, output and peripheral devices, Software, system and application software, number systems, Operating systems, packages and utilities, Low and High level languages, Compiler, Assembler, Memory – RAM, ROM, unit of computer memory (bits, bytes etc.), Network – LAN, WAN, internet, intranet, basics of computer security, virus, antivirus, firewall, spyware, malware etc.
Basics of Programming: Algorithm, Flowchart, Data, Information, Database, overview of different programming languages, frontend and backend of a project, variables, control structures, arrays and their usages, functions, modules, loops, conditional statements, exceptions, debugging and related concepts.
Statistics-II :
(i) Linear Models:
Theory of linear estimation, Gauss-Markov linear models, estimable functions, error and estimation space, normal equations and least square estimators, estimation of error variance, estimation with correlated observations, properties of least square estimators, generalized inverse of a matrix and solution of normal equations, variances and covariances of least square estimators. One way and two-way classifications, fixed, random and mixed effects models. Analysis of variance (two-way classification only), multiple comparison tests due to Tukey, Scheffe and Student-Newmann-Keul-Duncan.
(ii) Statistical Inference and Hypothesis Testing:
Characteristics of good estimator. Estimation methods of maximum likelihood, minimum chi-square, moments and least squares. Optimal properties of maximum likelihood estimators. Minimum variance unbiased estimators. Minimum variance bound estimators.
Cramer-Rao inequality. Bhattacharya bounds. Sufficient estimator. factorization theorem.
Complete statistics. Rao-Blackwell theorem. Confidence interval estimation. Optimum confidence bounds. Resampling, Bootstrap and Jacknife.
Hypothesis testing: Simple and composite hypotheses. Two kinds of error. Critical region.
Different types of critical regions and similar regions. Power function. Most powerful and uniformly most powerful tests. Neyman-Pearson fundamental lemma. Unbiased test.
Randomized test. Likelihood ratio test. Wald's SPRT, OC and ASN functions. Elements of decision theory.
(iii) Official Statistics:
National and International official statistical system Official Statistics: (a) Need, Uses, Users, Reliability, Relevance, Limitations, Transparency, its visibility (b) Compilation, Collection, Processing, Analysis and Dissemination, Agencies Involved, Methods
National Statistical Organization: Vision and Mission, NSSO and CSO; roles and responsibilities; Important activities, Publications etc.
National Statistical Commission: Need, Constitution, its role, functions etc; Legal Acts/ Provisions/ Support for Official Statistics; Important Acts Index Numbers: Different Types, Need, Data Collection Mechanism, Periodicity, Agencies Involved, Uses Sector Wise Statistics: Agriculture, Health, Education, Women and Child etc. Important Surveys & Census, Indicators, Agencies and Usages etc.
National Accounts: Definition, Basic Concepts; issues; the Strategy, Collection of Data and Release.
Population Census: Need, Data Collected, Periodicity, Methods of data collection, dissemination, Agencies involved.
Misc: Socio Economic Indicators, Gender Awareness/Statistics, Important Surveys and Censuses.
Statistics-III : Sampling Techniques, Estimation of Population, Econometrics, Applied Statistics, Time Series Analysis, Fourier Transform etc.
Statistics-IV : Operations Research and Reliability, Branch and Bound Method, PERT and CPM, Exponential Distributions, Demography and Vital Statistics, Survival Analysis and Clinical Trial, Data Management, Quality Control, Multivariate Analysis, Design and Analysis of Experiments, Computing with C and R etc.
UPSC IES/Indian Statistical Service Exam Pattern 2026
ISS Exam
1. Statistics I & II will be of Objective Type Questions (80 questions with maximum marks of 200 in each paper) to be attempted in 120 minutes.
2. Statistics III and IV will be of Descriptive Type having Short Answer/ Small Problems Questions (50%) and Long Answer and Comprehension problem questions (50%).
3. At least one Short Answer and One Long Answer Question from each section are compulsory.
4. In Statistics-IV, an equal number of questions i.e. 50% weightage from all the sub-sections below, and candidates have to choose any two subsections and answer.
5. The papers on General English and General Studies will be of subjective type.
Negative Marking : 0.33
| Subject | No.of Question | Total Marks | Durations |
| General English | - | 100 | 3 Hours |
| General Studies | - | 100 | 3 Hours |
| Statistics-I (Objective) | 80 | 200 | 2 Hours |
| Statistics-II (Objective) | 80 | 200 | 2 Hours |
| Statistics-III (Descriptive) | - | 200 | 3 Hours |
| Statistics-IV (Descriptive) | - | 200 | 3 Hours |
IES Exam
| Subject | Total Marks | Durations |
| General English | 100 | 3 Hours |
| General Studies | 100 | 3 Hours |
| Economics-I | 200 | 3 Hours |
| Economics-II | 200 | 3 Hours |
| Economics-III | 200 | 3 Hours |
| Indian Economics | 200 | 3 Hours |
UPSC IES ISS Exam Date 2026 : 19th to 21st June 2026
Starting Date of Application Form : 11th February 2026
Last Date of Application Form : 03rd March 2026
Total Post : 44
UPSC IES/Indian Statistical Service Exam Free Online Test Series
Crack UPSC IES ISS Mock Test 2026 with the help of Online Mock test Series or Free Mock Test. Every Sample Paper in UPSC IES/Indian Statistical Service Exam has a designated weightage so do not miss out any Paper. Preprare for UPSC IES ISS Mock Test and check your test scores.
1
UPSC Indian Statistical Service Statistics-I Exam - Hindi80 questions • 180 mins • 200 marks
Free Test →2
UPSC Indian Statistical Service Statistics-I Exam - English80 questions • 180 mins • 200 marks
Free Test →UPSC IES ISS Exam Free Online Question Bank
UPSC IES ISS question answer with solutions are available in Hindi & English. Join MCQ, Important Questions, Question Bank, questions and answers for Free UPSC IES ISS exam preparation.
1
UPSC Indian Statistical Service Statistics-I Exam - Hindi80 questions • 180 mins • 80 marks
Free Questions →2
UPSC Indian Statistical Service Statistics-I Exam - English80 questions • 180 mins • 80 marks
Free Questions →Combo Offers
UPSC IES ISS Combo Packages
We Launches Combo Offers ! with Heavy Discount and Cost Saving Prices. Combo Packages includes - Online Mock Test Series + Important Questions or MCQs + Previous Year Papers with Answer.
Combo Package
UPSC IES ISS
Combo - 1 (Hindi)
1. Online Mock Test Series in Hindi = 10 Tests.
2. Question Bank - 800 Questions with Answer.
3. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi.
4. 1000 (+) GK MCQ with Answer PDF Book in Hindi.
2. Question Bank - 800 Questions with Answer.
3. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi.
4. 1000 (+) GK MCQ with Answer PDF Book in Hindi.
₹181₹211
Combo Package
UPSC IES ISS
Combo - 2 (English)
1. Online Mock Test Series in English = 10 Tests.
2. Question Bank - 1000 Questions with Answer.
3. 1500 (+) Current Affairs MCQ with Answer PDF in English.
4. 1000 (+) GK MCQ with Answer PDF Book in English.
2. Question Bank - 1000 Questions with Answer.
3. 1500 (+) Current Affairs MCQ with Answer PDF in English.
4. 1000 (+) GK MCQ with Answer PDF Book in English.
₹201₹231
Combo Package
UPSC IES ISS
Combo - 3 (English)
1. Online Mock Test Series in English = 15 Tests.
2. Question Bank - 1300 Questions with Answer.
3. 1500 (+) Current Affairs MCQ with Answer PDF in English.
4. 1000 (+) GK MCQ with Answer PDF Book in English.
2. Question Bank - 1300 Questions with Answer.
3. 1500 (+) Current Affairs MCQ with Answer PDF in English.
4. 1000 (+) GK MCQ with Answer PDF Book in English.
₹231₹261
Combo Package
UPSC IES ISS
Combo - 4 (Hindi)
1. Online Mock Test Series in Hindi = 10 Tests.
2. Question Bank - 800 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi.
5. 1000 (+) GK MCQ with Answer PDF Book in Hindi.
2. Question Bank - 800 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi.
5. 1000 (+) GK MCQ with Answer PDF Book in Hindi.
₹601₹671
Combo Package
UPSC IES ISS
Combo - 5 (English)
1. Online Mock Test Series in English = 15 Tests.
2. Question Bank - 1300 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. 1500 (+) Current Affairs MCQ with Answer PDF in English.
5. 1000 (+) GK MCQ with Answer PDF Book in English.
2. Question Bank - 1300 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. 1500 (+) Current Affairs MCQ with Answer PDF in English.
5. 1000 (+) GK MCQ with Answer PDF Book in English.
₹651₹721
Combo Package
UPSC IES ISS
Combo - 6 (Hindi)
1. Online Mock Test Series in Hindi = 10 Tests.
2. Question Bank - 800 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. EBook of UPSC IES ISS (800 MCQ) PDF Format in Hindi.
5. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi.
6. 1000 (+) GK MCQ with Answer PDF Book in Hindi.
2. Question Bank - 800 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. EBook of UPSC IES ISS (800 MCQ) PDF Format in Hindi.
5. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi.
6. 1000 (+) GK MCQ with Answer PDF Book in Hindi.
₹721₹881
Combo Package
UPSC IES ISS
Combo - 7 (English)
1. Online Mock Test Series in English = 15 Tests.
2. Question Bank - 1300 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. EBook of UPSC IES ISS (1000 MCQ) PDF Format in English.
5. 1500 (+) Current Affairs MCQ with Answer PDF in English.
6. 1000 (+) GK MCQ with Answer PDF Book in English.
2. Question Bank - 1300 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. EBook of UPSC IES ISS (1000 MCQ) PDF Format in English.
5. 1500 (+) Current Affairs MCQ with Answer PDF in English.
6. 1000 (+) GK MCQ with Answer PDF Book in English.
₹751₹911
FAQs
UPSC Ies/indian Statistical Service 2026 Free Mock Test Frequently Asked Questions (FAQ's)
You can find and practice free mock tests for the UPSC IES ISS exam on the Toppersexam.com portal.
Mock tests are very powerful tool for exam preparation. They help students develop confidence, manage time effectively and improves accuracy to prepare better for UPSC IES ISS.
You can find a free online mock test for the UPSC IES ISS on toppersexam.com. By taking frequent online mock tests students can monitor there progress and create a study plan according to the needs.
You can take mock test online for UPSC IES ISS to know the CBT (computer based test) format of the main exam. You will get latest exam pattern, updated syllabus and type of questions asked in the actual exam.
Mock tests are practice exams to prepare the students for the final one. Taking mock test regularly helps students to improve time management skills and boost confidence.
Students can find a free mock test for UPSC IES ISS only at toppersexam. Get free online mock test to experience the actual exam format is important to reduce anxiety and improves your confidence.
Advantages of online mock tests are immediate results, accessibility and time management. Sample papers and mock tests are remarkable tools to track students performance and change your study plan according to your weakness.
Free online mock test can improve your score by making you exam ready before the final exam. It is a excellent way to know the exam pattern and identify your weakness for the UPSC IES ISS.
Toppersexam free online mock test are designed by subject experts to provide the best preparation for UPSC IES ISS. The questions asked are exactly like the ones which are asked in the actual exam.
Students should practice more and more online mock test for UPSC IES ISS to evaluate their performance, detect weaknesses, and improve time management without any cost.
Current affairs and general knowledge mock test are important ways to increase knowledge to stay updated about the recent news and events. Regular practicing with current affairs mock test helps students to prepare better for general awareness section for the final exam.
User Reviews