Quick Links
Quick Links
UPSC Exams
Latest Update
TNPSC Group 4 Hall Ticket 2025 UPSC CAPF Exam Date 2025 Rajathan PTET Result in Hindi MAHATRANSCO Admit Card 2025 Rajasthan PTET Result 2025 BTSC Dresser Admit Card 2025 Fastag Annual Pass 2025 UGC NET Answer Key June 2025 UGC NET Exam Analysis 2025 UGC NET Question Paper 2025 AP LAWCET Result 2025 UGC NET City Slip 2025 UPSC DAF 1 2025 Rajasthan PTET Answer Key 2025 UPSC Prelims Result 2025 UPSC IFS Result 2025 8th Pay Commission Salary Hike News UPSC 2024 Prelims Answer Key UPSC 2026 Calendar UPSC Admit Card 2025 UPSC Prelims Result Date 2025 UPSC Prelims Answer Key 2025 UPSC Prelims 2025 Expected Cut Off UPSC Prelims Exam Analysis 2025 UPSC Final Result 2025 UPSC Topper Shakti Dubey UPSC Application Rejected List 2025 UPSC Application Date Re-Extended UPSC Interview Date 2024 UPSC Notification 2025 UPSC Admit Card 2025 for Prelims UPSC CSE Prelims 2025 Question Paper UPSC IFS Notification 2025
Coaching
UPSC Current Affairs
Syllabus
UPSC Notes
Previous Year Papers
UPSC Mains Previous Year Question Papers Last 25 Years UPSC Prelims Question Papers Last 10 Years UPSC Question Papers UPSC CSE Prelims 2025 Question Paper UPSC Mains 2024 Model Answers UPSC 2024 Question Papers UPSC 2023 Question Papers UPSC 2022 Question Papers UPSC 2021 Question Papers UPSC 2020 Question Papers UPSC 2019 Question Papers UPSC 2018 Question Papers UPSC 2017 Question Papers UPSC 2016 Question Papers UPSC 2015 Question Papers UPSC 2014 Question Papers UPSC CSAT Question Papers UPSC IFS Previous Year Paper UPSC Assistant Labour Commissioner Previous Question Year Papers UPSC Combined Geo Scientist Previous Year Paper UPSC APFC Previous Year Question Papers UPSC CMS Previous Year Question Paper UPSC EPFO Previous Year Paper UPSC Air Safety Officer Previous Year Papers UPSC SO Steno Previous Year Paper UPSC IES ISS Previous Year Question Papers
Mock Tests
UPSC Editorial
Bilateral Ties
Albania India Relations India Algeria Relations Andorra India Relations India Angola Relations India Antigua Barbuda Relations India Argentina Relations Austria India Relations India Azerbaijan Relations Bahamas India Relations India Bahrain Relations Barbados India Relations India Belarus Relations Belgium India Relations Belize India Relations Benin India Relations Bolivia India Relations India Bosnia Herzegovina Relations India Botswana Relations Brazil India Relations Brunei India Relations Bulgaria India Relations Burundi India Relations Cabo Verde India Relations India Cambodia Relations India Cameroon Relations Canada India Relations India Cayman Islands Relations India Central African Republic Relations India Chad Relations Chile India Relations India Colombia Relations India Comoros Relations India Democratic Republic Of The Congo Relations India Republic Of The Congo Relations India Cook Islands Relations India Costa Rica Relations India Ivory Coast Relations India Croatia Relations India Cyprus Relations India Czech Republic Relations India Djibouti Relations India Dominica Relations India Dominican Republic Relations India Ecuador Relations India El Salvador Relations India Equatorial Guinea Relations India Eritrea Relations Estonia India Relations India Ethiopia Relations India Fiji Relations India Finland Relations India Gabon Relations India Gambia Relations India Georgia Relations Germany India Relations India Ghana Relations India Greece Relations India Grenada Relations India Guatemala Relations India Guinea Relations India Guinea Bissau Relations India Guyana Relations India Haiti Relations India Holy See Relations India Honduras Relations India Hong Kong Relations India Hungary Relations India Iceland Relations India Indonesia Relations India Iran Relations India Iraq Relations India Ireland Relations India Jamaica Relations India Kazakhstan Relations India Kenya Relations India Kingdom Of Eswatini Relations India Kiribati Relations India Kuwait Relations India Kyrgyzstan Relations India Laos Relations Latvia India Relations India Lebanon Relations India Lesotho Relations India Liberia Relations Libya India Relations Liechtenstein India Relations India Lithuania Relations India Luxembourg Relations India Macao Relations Madagascar India Relations India Malawi Relations India Mali Relations India Malta Relations India Marshall Islands Relations India Mauritania Relations India Micronesia Relations India Moldova Relations Monaco India Relations India Montenegro Relations India Montserrat Relations India Morocco Relations Mozambique India Relations India Namibia Relations India Nauru Relations Netherlands India Relations India Nicaragua Relations India Niger Relations India Nigeria Relations India Niue Relations India North Macedonia Relations Norway India Relations India Palau Relations India Panama Relations India Papua New Guinea Relations India Paraguay Relations Peru India Relations India Philippines Relations Qatar India Relations India Romania Relations Rwanda India Relations India Saint Kitts And Nevis Relations India Saint Lucia Relations India Saint Vincent And Grenadines Relations India Samoa Relations India Sao Tome And Principe Relations Saudi Arabia India Relations India Senegal Relations Serbia India Relations India Sierra Leone Relations India Singapore Relations India Slovak Republic Relations India Slovenia Relations India Solomon Islands Relations Somalia India Relations India South Sudan Relations India Spain Relations India Sudan Relations Suriname India Relations India Sweden Relations India Syria Relations India Tajikistan Relations Tanzania India Relations India Togo Relations India Tonga Islands Relations India Trinidad And Tobago Relations India Tunisia Relations India Turkmenistan Relations India Turks And Caicos Islands Relations India Tuvalu Relations India Uganda Relations India Ukraine Relations India Uae Relations India Uruguay Relations India Uzbekistan Relations India Vanuatu Relations India Venezuela Relations India British Virgin Islands Relations Yemen India Relations India Zambia Relations India Zimbabwe Relations
Books
Government Schemes
Production Linked Incentive Scheme Integrated Processing Development Scheme Rodtep Scheme Amended Technology Upgradation Fund Scheme Saathi Scheme Uday Scheme Hriday Scheme Samagra Shiksha Scheme India Nishta Scheme Stand Up India Scheme Sahakar Mitra Scheme Mdms Mid Day Meal Scheme Integrated Child Protection Scheme Vatsalya Scheme Operation Green Scheme Nai Roshni Scheme Nutrient Based Subsidy Scheme Kalia Scheme Ayushman Sahakar Scheme Nirvik Scheme Fame India Scheme Kusum Scheme Pm Svanidhi Scheme Pmvvy Scheme Pm Aasha Scheme Pradhan Mantri Mahila Shakti Kendra Scheme Pradhan Mantri Lpg Panjayat Scheme Mplads Scheme Svamitva Scheme Pat Scheme Udan Scheme Ek Bharat Shresth Bharat Scheme National Pension Scheme Ujala Scheme Operation Greens Scheme Gold Monetisation Scheme Family Planning Insurance Scheme Target Olympic Podium Scheme
Topics
NASA Space Missions
NASA Mercury-Redstone 3 (Freedom 7) Mission NASA Mercury-Redstone 4 (Liberty Bell 7) Mission NASA Mercury-Atlas 6 (Friendship 7) Mission NASA Mercury-Atlas 7 (Aurora 7) Mission NASA Mercury-Atlas 8 (Sigma 7) Mission NASA Mercury-Atlas 9 (Faith 7) Mission NASA Gemini 3 Mission NASA Gemini 4 Mission NASA Gemini 5 Mission NASA Gemini 7 Mission NASA Gemini 8 Mission NASA Gemini 9 Mission NASA Gemini 10 Mission NASA Gemini 11 Mission NASA Gemini 12 Mission NASA Apollo 1 (AS‑204) Mission NASA Apollo 7 Mission NASA Apollo 8 Mission NASA Apollo 9 Mission NASA Apollo 10 Mission NASA Apollo 11 Mission NASA Apollo 12 Mission NASA Apollo 13 Mission NASA Apollo 14 Mission NASA Apollo 15 Mission NASA Apollo 16 Mission NASA Apollo 17 Mission NASA Skylab Orbital Workshop Mission NASA Skylab 2 Mission NASA Skylab 3 Mission NASA Skylab 4 Mission NASA Apollo–Soyuz Test Project Mission NASA STS‑1 Columbia Mission NASA STS‑3 Columbia Mission NASA STS‑7 Challenger Mission NASA STS‑8 Challenger Mission NASA STS‑41B Challenger Mission NASA STS‑41G Discovery (1st female EVA) Mission NASA STS‑51L Challenger (accident) Mission NASA STS‑26 Discovery (Return‑to‑Flight) Mission NASA STS‑31 Discovery (Hubble Launch) Mission NASA STS‑49 Endeavour (first capture EVA) Mission NASA STS‑61 Endeavour (Hubble Servicing 1) Mission NASA STS‑73 Columbia (microgravity) Mission NASA STS‑95 Discovery (John Glenn returns) Mission NASA STS‑107 Columbia (accident) Mission NASA STS‑114 Discovery (RTF‑2) Mission NASA STS‑120 Discovery (Node 2) Mission NASA STS‑125 Atlantis (Final Hubble Service) Mission NASA STS‑132 Atlantis Mission NASA STS‑135 Atlantis (Final Shuttle flight) Mission NASA Artemis I (Orion/ SLS‑1) Mission NASA Artemis II (Planned) Mission NASA Artemis III (Planned lunar landing) Mission NASA Mariner 4 Mission NASA Mariner 6 Mission NASA Mariner 7 Mission NASA Mariner 9 Mission NASA Viking 1 Orbiter/Lander Mission NASA Viking 2 Orbiter/Lander Mission NASA Mars Pathfinder & Sojourner Mission NASA Mars Global Surveyor Mission NASA 2001 Mars Odyssey Mission NASA Mars Exploration Rover – Spirit Mission NASA Mars Exploration Rover – Opportunity Mission NASA Mars Reconnaissance Orbiter Mission NASA Phoenix Mars Lander Mission NASA InSight Mars Lander Mission NASA Mars 2020 (Perseverance & Ingenuity) Mission NASA Mars Sample Return – SRL (planned) Mission NASA Pioneer 10 Mission NASA Pioneer 11 Mission NASA Voyager 1 Mission NASA Voyager 2 Mission NASA Galileo Jupiter Orbiter/Probe Mission NASA Cassini–Huygens Mission NASA New Horizons (Pluto & KBO) Mission NASA Juno Mission NASA Europa Clipper (planned) Mission NASA Parker Solar Probe Mission NASA Solar Orbiter (ESA/NASA) Mission NASA Surveyor 1 Mission NASA Lunar Orbiter 1 Mission NASA Lunar Prospector Mission NASA LCROSS Mission NASA LADEE Mission NASA Lunar Reconnaissance Orbiter (LRO) Mission NASA CAPSTONE Mission NASA VIPER Rover (planned) Mission NASA NEAR Shoemaker Mission NASA Deep Space 1 Mission NASA Stardust Mission NASA Genesis Mission NASA Deep Impact Mission NASA Dawn (Vesta/Ceres) Mission NASA OSIRIS‑REx Mission NASA Lucy Mission NASA DART Mission NASA Landsat‑1 (ERTS‑1) Mission NASA Landsat‑5 Mission NASA Landsat‑9 Mission NASA Terra Mission NASA Aqua Mission NASA Aura Mission NASA Suomi NPP Mission NASA Sentinel‑6 Michael Freilich Mission NASA ICESat‑2 Mission NASA GRACE‑FO Mission NASA SMAP Mission NASA GPM Core Observatory Mission NASA CALIPSO Mission NASA CloudSat Mission NASA NISAR (NASA‑ISRO) Mission NASA Explorer 1 Mission NASA COBE Mission NASA Compton Gamma Ray Observatory Mission NASA Hubble Space Telescope Mission NASA Chandra X‑ray Observatory Mission NASA Spitzer Space Telescope Mission NASA WISE Mission NASA Kepler Mission NASA TESS Mission NASA Fermi Gamma‑ray Space Telescope Mission NASA NICER Mission NASA IXPE Mission NASA Roman Space Telescope (planned) Mission NASA NuSTAR Mission NASA GALEX Mission NASA Swift Mission NASA SOHO (ESA/NASA) Mission NASA Cluster II (ESA/NASA) Mission NASA TIMED Mission NASA STEREO‑A/B Mission NASA MMS Mission NASA IRIS Mission NASA Solar Dynamics Observatory Mission NASA X‑37B OTV‑1 (USAF/NASA liaison) Mission NASA X‑59 QueSST Mission NASA Mars Helicopter Ingenuity Mission NASA Valkyrie R5 Robot Mission NASA Low‑Boom Flight Demo Mission NASA CRS‑1 Dragon Mission NASA CRS‑1 Cygnus Mission NASA Crew Dragon Demo‑2 Mission NASA Starliner OFT‑2 Mission NASA STS-2 (Shuttle flight) Mission NASA STS-4 (Shuttle flight) Mission NASA STS-5 (Shuttle flight) Mission NASA STS-6 (Shuttle flight) Mission NASA STS-41C (Shuttle flight) Mission NASA STS-41D (Shuttle flight) Mission NASA STS-51A (Shuttle flight) Mission NASA STS-61C (Shuttle flight) Mission NASA STS-26 (Shuttle flight) Mission NASA STS-27 (Shuttle flight) Mission NASA STS-29 (Shuttle flight) Mission NASA STS-30 (Shuttle flight) Mission NASA STS-32 (Shuttle flight) Mission NASA STS-34 (Shuttle flight) Mission NASA STS-38 (Shuttle flight) Mission NASA STS-45 (Shuttle flight) Mission NASA STS-60 (Shuttle flight) Mission NASA STS-70 (Shuttle flight) Mission NASA STS-71 (Shuttle flight) Mission NASA STS-73 (Shuttle flight) Mission NASA STS-88 (Shuttle flight) Mission NASA STS-92 (Shuttle flight) Mission NASA STS-97 (Shuttle flight) Mission NASA STS-99 (Shuttle flight) Mission NASA STS-100 (Shuttle flight) Mission NASA STS-104 (Shuttle flight) Mission NASA STS-106 (Shuttle flight) Mission NASA STS-110 (Shuttle flight) Mission NASA STS-112 (Shuttle flight) Mission NASA STS-115 (Shuttle flight) Mission NASA STS-116 (Shuttle flight) Mission NASA STS-117 (Shuttle flight) Mission NASA STS-118 (Shuttle flight) Mission NASA STS-120 (Shuttle flight) Mission NASA STS-122 (Shuttle flight) Mission NASA STS-123 (Shuttle flight) Mission NASA STS-126 (Shuttle flight) Mission NASA STS-130 (Shuttle flight) Mission NASA Vanguard 1 Mission NASA Transit 1B Mission NASA Echo 1 Mission NASA Telstar 1 Mission NASA Syncom 3 Mission NASA ATS‑6 Mission NASA Skynet Mission NASA Nimbus‑1 Mission NASA Nimbus‑7 Mission NASA ERS-1 Mission NASA SeaSat Mission NASA QuikSCAT Mission NASA Jason‑1 Mission NASA Jason‑3 Mission NASA ICESat Mission NASA Earth Observing‑1 Mission NASA Orbiting Carbon Observatory‑2 Mission NASA CYGNSS Mission NASA PACE Mission NASA TRMM Mission NASA Terrestrial Planet Finder (cxl) Mission NASA Laser Interferometer Space Antenna (LISA) Mission NASA Explorer 33 Mission NASA Voyager Interstellar Mission Mission NASA Helios‑A Mission NASA Helios‑B Mission NASA ISEE‑3 (ICE) Mission NASA ACE Mission NASA DSCOVR Mission NASA IBEX Mission NASA Solar Orbiter Heliospheric Imager Mission NASA SAGE‑III ISS Mission NASA SPACE Telescope Imaging Spectrograph Mission NASA ARIEL (ESA/NASA) Mission NASA OSAM‑1 (Restore‑L) Mission NASA Dragonfly (Titan rotorcraft) Mission NASA VERITAS (Venus orbiter) Mission NASA DAVINCI (Venus probe) Mission NASA SPHEREx Mission NASA MAGGIE (Mars Geophysical) Mission NASA CLPS – Peregrine Mission NASA CLPS – VIPER Delivery Mission NASA CAPSTONE Mission NASA Gateway (HALO / PPE) Mission NASA Mars Telecommunication Orbiter (cxl) Mission NASA Mars Polar Lander (MPL) Mission NASA Mars Climate Orbiter Mission NASA Pathfinder Mission Mission NASA SLS Block 1B (Exploration Upper Stage) Mission NASA Orion Crew Module Mission NASA Commercial LEO Destinations – Axiom Station Mission NASA ISS Expedition 1 Mission NASA ISS Expedition 70 Mission NASA CRS‑11 (Dragon) Mission NASA CRS‑21 (Dragon 2) Mission NASA Snoopy CubeSat Mission
ISRO Space Missions
NVS-02 ISRO Space Mission SPADEX-A ISRO Space Mission SPADEX-B ISRO Space Mission Proba-3 ISRO Space Mission GSAT-N2 ISRO Space Mission EOS-08 ISRO Space Mission INSAT-3DS ISRO Space Mission XPoSat ISRO Space Mission Aditya-L1 ISRO Space Mission Chandrayaan-3 ISRO Space Mission NVS-01 ISRO Space Mission EOS-07 ISRO Space Mission INS-2B ISRO Space Mission EOS-06 ISRO Space Mission EOS-02 ISRO Space Mission GSAT-24 ISRO Space Mission INS-2TD ISRO Space Mission EOS-04 ISRO Space Mission EOS-03 ISRO Space Mission CMS-01 ISRO Space Mission EOS-01 ISRO Space Mission GSAT-30 ISRO Space Mission RISAT-2BR1 ISRO Space Mission Chandrayaan 2 ISRO Space Mission RISAT-2B ISRO Space Mission EMISAT ISRO Space Mission GSAT-31 ISRO Space Mission Microsat-R ISRO Space Mission GSAT-7A ISRO Space Mission GSAT-11 ISRO Space Mission HysIS ISRO Space Mission GSAT-29 ISRO Space Mission IRNSS-1I ISRO Space Mission GSAT-6A ISRO Space Mission INS-1C ISRO Space Mission Microsat ISRO Space Mission IRNSS-1H ISRO Space Mission GSAT-17 ISRO Space Mission GSAT-19 ISRO Space Mission GSAT-9 ISRO Space Mission Cartosat-2 Series Satellite INS-1A ISRO Space Mission INS-1B ISRO Space Mission RESOURCESAT-2A ISRO Space Mission GSAT-18 ISRO Space Mission INSAT-3DR ISRO Space Mission IRNSS-1G ISRO Space Mission IRNSS-1F ISRO Space Mission IRNSS-1E ISRO Space Mission GSAT-15 ISRO Space Mission GSAT-6 ISRO Space Mission IRNSS-1D ISRO Space Mission Crew module Atmospheric Re-entry Experiment (CARE) ISRO Space Mission GSAT-16 ISRO Space Mission IRNSS-1C ISRO Space Mission IRNSS-1B ISRO Space Mission GSAT-14 ISRO Space Mission Mars Orbiter Mission Spacecraft GSAT-7 ISRO Space Mission INSAT-3D ISRO Space Mission IRNSS-1A ISRO Space Mission SARAL ISRO Space Mission GSAT-10 ISRO Space Mission RISAT-1 ISRO Space Mission Megha-Tropiques ISRO Space Mission GSAT-12 ISRO Space Mission GSAT-8 ISRO Space Mission RESOURCESAT-2 ISRO Space Mission YOUTHSAT ISRO Space Mission GSAT-5P ISRO Space Mission GSAT-4 ISRO Space Mission Oceansat-2 ISRO Space Mission RISAT-2 ISRO Space Mission Chandrayaan-1 ISRO Space Mission IMS-1 ISRO Space Mission INSAT-4CR ISRO Space Mission INSAT-4B ISRO Space Mission SRE-1 ISRO Space Mission INSAT-4C ISRO Space Mission INSAT-4A ISRO Space Mission HAMSAT ISRO Space Mission EDUSAT ISRO Space Mission IRS-P6 / RESOURCESAT-1 ISRO Space Mission INSAT-3E ISRO Space Mission GSAT-2 ISRO Space Mission INSAT-3A ISRO Space Mission KALPANA-1 ISRO Space Mission INSAT-3C ISRO Space Mission GSAT-1 ISRO Space Mission INSAT-3B ISRO Space Mission Oceansat(IRS-P4) ISRO Space Mission INSAT-2E ISRO Space Mission IRS-1D ISRO Space Mission INSAT-2D ISRO Space Mission IRS-P3 ISRO Space Mission IRS-1C ISRO Space Mission INSAT-2C ISRO Space Mission IRS-P2 ISRO Space Mission SROSS-C2 ISRO Space Mission IRS-1E ISRO Space Mission INSAT-2B ISRO Space Mission INSAT-2A ISRO Space Mission SROSS-C ISRO Space Mission IRS-1B ISRO Space Mission INSAT-1D ISRO Space Mission INSAT-1C ISRO Space Mission SROSS-2 ISRO Space Mission IRS-1A ISRO Space Mission SROSS-1 ISRO Space Mission INSAT-1B ISRO Space Mission Rohini Satellite RS-D2 ISRO Space Mission INSAT-1A ISRO Space Mission Bhaskara-II ISRO Space Mission Ariane Passenger Payload Experiment (APPLE) ISRO Rohini Satellite RS-D1 ISRO Space Mission Rohini Satellite RS-1 ISRO Space Mission Rohini Technology Payload (RTP) ISRO Space Mission Bhaskara-I ISRO Space Mission Aryabhata ISRO Space Mission

Home / UPSC IES ISS Examination / Syllabus & Exam Pattern

UPSC IES ISS Syllabus & Exam Pattern 2025: Download PDF!

Last Updated on Jun 11, 2025

Download UPSC IES ISS Examination complete information as PDF
IMPORTANT LINKS
Admit Card Exam Pattern Result Eligibility Criteria Cut off Syllabus & Exam Pattern Exam Analysis Previous Year Papers
UPSC Beginners Program

Get UPSC Beginners Program SuperCoaching @ just

₹50000

Claim for free
Want to know more about this pass ?
Explore SuperCoaching

The UPSC IES ISS Syllabus and Exam Pattern is released along with the official notification for the IES ISS exams. Candidates who have applied for the UPSC IES/ISS Examination should know the syllabus as well as the exam pattern for both Indian Statistical Services and Indian Economic Services and start preparing accordingly. The UPSC IES ISS Syllabus comprises various sections including General Studies, General English, as well as subject-specific papers on Economics or Statistics. Candidates who have applied for the exam must carefully review the UPSC IES ISS Syllabus and Exam Pattern, as well as marking scheme, subject-wise distribution of marks, etc in order to be well prepared for the exam. 

  • The written examination for both IES and ISS is conducted for 1000 marks across 6 Papers.
  • Candidates who qualify the Written Examination will be shortlisted for the Interview round, which will be conducted for 200 marks. 
  • The UPSC IES ISS Written Examination will be conducted for a total of 1000 marks. 
  • The exam will consist of both objective-type as well as Descriptive papers, consisting of essay type questions. 
  • Knowing the syllabus and exam pattern is mandatory for every candidate for strategic preparation for the examination. 

If you are preparing for UPSC IES/ISS, you should also check CSAT For UPSC IAS Online Coaching here to boost your chances of selection.

UPSC IES ISS Exam Pattern 2025

The UPSC IES ISS Exam Pattern consists of 6 papers, each constituting 100 or 200 marks. Candidates will be required to qualify all these papers for 1000 marks. Let us go through the detailed exam pattern for the UPSC IES and ISS exams below –

UPSC Indian Economic Service Written Examination Pattern

The below table describes the written examination pattern, subjects, duration of Indian Economic service examination 2025.

S.No

Name of Subject

Total Number of Marks

Duration

1

General English

100

3 hours

2

General Studies

100

3 hours

3

General Economic-I

200

3 hours

4

General Economics-II

200

3 hours

5

General Economics-III

200

3 hours

6

Indian Economics

200

3 hours

Note –

  • The Written examination is conducted for 1000 marks which include 5 subjects.
  • The duration of every paper is 3 hours.

UPSC Indian Statistical Service Exam Pattern 2025

The UPSC ISS Exam Pattern is similar to that of the Indian Economic Services exam. However, the subject-specific papers will be different. The below table describes the written exam pattern, subjects, duration of Indian Statistical service examination 2025 –

S.No

Name of Subject

Total Number of Marks

Duration

1

General English

100

3 hours

2

General Studies

100

3 hours

3

Statistics-I (Objective)

200

2 hours

4

Statistics-II (Objective)

200

2 hours

5

Statistics-III (Descriptive)

200

3 hours

6

Statistics-IV (Descriptive)

200

3 hours

Note –

  • The Written examination is conducted for 1000 marks which include 6 Papers
  • The time duration for statistics I and II is 2 hours and the time duration for the remaining examination is 3 hours.
  • Statistics I and II are objective papers with 80 questions each with maximum marks of 200 each, the duration of the examination is 2 hours.
  • Statistics III and IV of the exam are descriptive papers 
  • General English and general students papers are common for both IES and ISS examinations

UPSC IES ISS Exam Pattern for Viva Voce

Candidates who have qualified the written examination will be called for the viva voce or interview process. The interview is conducted for 200 marks. The candidate will be interviewed by the board officials of the examination. The aim of the interview is to check the suitability of the candidate in his/her post. The interview is intended to supplement the written examination to test the general knowledge and abilities of the candidate,

The process of the interview is not the strict cross-verification, it is all about checking the qualification and character standards of the candidate. The board will test the intellectual curiosity, grasping power, the balance of judgment, alertness of mind, integrity of character, the ability for social coherence and capacity of leadership in the candidate.

Syllabus of Indian Statistical Service Exam 2025

The syllabus for the Indian Statistical Service (ISS) Exam 2024 typically covers topics such as statistical methods, probability, linear models, time series analysis, sampling techniques, and applied statistics. Additionally, candidates may expect questions related to economic statistics, demographic statistics, and social statistics as part of the examination.

UPSC IES/ISS General English Syllabus

The General English paper is a common paper in the UPSC IES and ISS Exams. Candidates can refer to the important syllabus subjects mentioned below to prepare for the English section –

Subject

Syllabus Topics

General English Language & Comprehension

Understanding of English language and vocabulary

Passages

Essay writing

Summary of Precis Writing

UPSC IES/ISS General Studies Syllabus

General Studies is another common paper for both the IES and ISS exams. Candidates can refer to the subjects mentioned in the table below –

Subject

Syllabus Topics

General Studies

Geography

Current events

General Knowledge

Current Affairs

History of India

UPSC IES ISS Syllabus for Statistics-I (Objective Type) 

Statistics-I will be an objective-type paper which will be conducted for 200 marks. The following are the important syllabus topics to study for the UPSC IES/ISS exam –

Subject

Syllabus Topics

Statistics I

Statistical Methods

Concept of interpolation and extrapolation

Bivariate normal distribution

Ratios

Data/Charts/Diagrams/Histograms

Computer applications

Basics of computer security

The finite-difference of different orders

Inverse Interpolation

Summation of Sets

Numerical solutions of differential equations

Probability

Intraclass correlation

Frequency of distribution

Order statistics

Frequency Distribution

Numerical analysis

Data processing

Operations of computer

Low and High-level languages

Numerical Differentiations

Basics of Programming

UPSC IES ISS Syllabus for Statistics-II (Objective Type)

The following are the im[portant UPSC IES/ISS Syllabus topics for the Statistics II paper, which will be conducted for a total of 200 marks –

Subject

Syllabus Topics

Statistics II

Statistical Interferences

Official Statistics

Index Numbers

Theory of linear estimation

Important surveys and census

Characteristics of good estimators

National and International Official statistics

Population Census

National Statistical organization

Linear Models

Hypothesis testing

National Accounts

Estimation Methods

Normal equations

Error and estimation space

Socio-economic Indicators

Misc

Sector-wise statistics

UPSC IES ISS Syllabus for Statistics-III (Descriptive)

The UPSC IES/ISS Syllabus for the Statistics III (Descriptive Paper) will have essay type questions based on the following topics –

Subject

Syllabus Topics

Statistics III (Descriptive Paper)

Econometrics

Nature of economics

Systematic sampling

Coherence and variance function

Simultaneous linear equation model

Sampling of Techniques

Applied Statistics

Index Numbers

Sampling with probability proportional to the size

Time series analysis

Syllabus of Indian Economic Service Exam 2025

The syllabus for the Indian Economic Service (IES) Exam 2024 includes topics such as microeconomics, macroeconomics, Indian economy, statistical methods, econometrics, and general studies. Additionally, candidates are expected to have a strong understanding of current affairs, economic issues, and development policies. Let us go through the detailed syllabus for subject-wise papers below –

UPSC IES/ISS Syllabus for General Economics-I

The following are the important syllabus topics for preparation of this section –

Subject

Syllabus Topics

General Economics I

Theory of Production

Theory of Distribution

Theory of Consumer Demand

Theory of Value

Welfare Economics

UPSC IES/ISS Syllabus for General Economics II

The following are the important syllabus topics for the Economics II paper of the UPSC IES exam –

Subject

Syllabus Topics

General Economics II

Economic Thought

Theory of Employment, output, inflation, and money

Finance and Capital Markets

Economic Growth and development

Asian Finance Crisis 19970

Euro zero crisis

Concept of national income and Social Accounting

IS-LM ModelInvestment savings and Liquidity money supply) and AD-AS(Aggregate Demand-Aggregate Supply) Model

Basics of endogenous theory

International economics

Global Finance Crisis 2008

Global Institutions

UPSC IES ISS Syllabus for General Economics III

The UPSC IES exam consists of an objective paper on General Economics III, important syllabus topics of which are as follows –

Subject

Syllabus Topics

General Economics III

Public Finance

Rio process-1992 to 2012

UNFFC

Industrial economics

Market mechanism

Environmental Economics

Rio Conventions

Carbon markets

State market and planning

Climate change finance and green climate fund

UPSC IES/ISS Syllabus for Indian Economics

The following are the important syllabus topics for the Indian Economics section of the UPSC IES ISS Exam –

Subject

Syllabus Topics

Indian Economics

History of development and planning

Budgeting and fiscal policy

Agriculture and rural development strategies

Labour

Money and banking

Commodity Market In India-spot

Federal Finance

Poverty, Unemployment and human development

Industry: Strategy of industrial development

Finance Trade

Bilateral trade agreements

Role of FMC(Forward Markets Commission

We hope you found this article informative and helpful and please do not hesitate to contact us for any doubts or queries. You can also download our Testbook App which is free and start preparing for UPSC Indian Economic Service/India Statistical Service examination and any government examination. It gives you confidence by taking mock tests before the examination.

Latest UPSC IES ISS Updates

Last updated on Jul 4, 2025

-> Union Public Service Commission has introduced the new UPSC Online Application Portal w.e.f. from 28th May, 2025. 

-> UPSC IES ISS Exam Admit Card 2025 released on 10 June, 2025 @upsc.gov.in

-> UPSC IES ISS Exam Date 2026 is out! The exam will be conducted on 19 June, 2026. The official UPSC IES ISS Notification 2026 woll be released on 
11 February, 2026.

-> UPSC IES ISS Exam Date & Schedule 2025 is out! The Written Exam will be conducted from 20th to 22nd June, 2025 in multiple shifts.

-> UPSC IES ISS Notification has been released for 47 vacancies under the Indian Economic Services and Indian Statistical Services.

-> Candidates must check the UPSC IES ISS Eligibility Criteria to apply for the recruitment.

-> Stay updated with daily current affairs for UPSC.

UPSC IES ISS Syllabus FAQ

What is the selection process to get recruited as Indian economic service/Indian Statistical service?

The IES written examination is conducted for 1000 marks

Yes there is negative marking of 1/3rd marks. For every wrong answer, 0.33 marks will be deducted in the objective type question paper.

For every paper 3 hours is the maximum time duration allotted by the officials

The full form for ISS is Indian statistical service.

While the UPSC IES ISS Exam is one of the most competitive examinations to crack, with rigorous effort and practice, it can be easily cracked.
Statistics III and IV are the descriptive examinations in India Statistical service examination.
Have you taken your UPSC IES ISS Examination free test?
Not Yet?

Sign Up and take your free test now!

Exams Tests Super Practice