Syllabus overview
GATE AG syllabus 2027 with the official PDF, 100-mark exam pattern and complete section-wise topic tables for Agricultural Engineering.
Highlights
AG is the official GATE code for Agricultural Engineering.
The official syllabus contains 7 sections: Engineering Mathematics; Farm Machinery; Farm Power; Soil and Water Conservation Engineering; Irrigation and Drainage Engineering; Agricultural Process Engineering; Dairy and Food Engineering.
The paper is a 3-hour Computer-Based Test for 100 marks, including 15 marks of General Aptitude.
Allowed second-paper codes when AG is primary: CE.
The official IIT Madras PDF is available in the download section.
Quick facts
- Exam
- GATE
- Paper / stage
- AG · Agricultural Engineering
- Current cycle
- 2027
- Page type
- Syllabus
- Conducting body
- GATE
- Language
- English
Detailed syllabus
GATE AG Syllabus 2027 Overview
The official GATE AG syllabus 2027 for Agricultural Engineering is organized into 7 sections, covering Engineering Mathematics, Farm Machinery, Farm Power, Soil and Water Conservation Engineering and the remaining paper-specific areas listed below. This page follows the IIT Madras syllabus order, provides the correct 100-mark exam pattern, and links the official PDF so aspirants can prepare from a complete, verified checklist.
How to Prepare from the GATE AG Syllabus
- Create one checklist for every official section and retain the same sequence used in the PDF.
- Start with a diagnostic test, then allocate more study time to weak high-coverage sections instead of dividing time equally.
- Solve previous-year GATE questions immediately after completing each topic and record errors by concept, calculation and time pressure.
- Revise formulas, definitions and frequently confused conditions in short weekly cycles, followed by mixed-section tests.
- Use the official PDF as the final scope document; coaching notes should expand a listed topic, not introduce an unrelated syllabus.
GATE AG Official Source and Internal Links
The syllabus tables were checked against the IIT Madras GATE 2027 AG PDF. Use the download section for the database-hosted copy, the GATE syllabus hub to switch papers, and the notification page for registration dates and policy updates.
Exam pattern
GATE AG Exam Pattern 2027
| Section | Marks | How it applies |
|---|---|---|
| General Aptitude | 15 | Common to all GATE papers |
| Engineering Mathematics | 13 | Paper-specific engineering mathematics |
| Core subject questions | 72 | Selected test-paper syllabus |
| Total | 100 | 3-hour CBT |
Section: General Aptitude
- Marks
- 15
- How it applies
- Common to all GATE papers
Section: Engineering Mathematics
- Marks
- 13
- How it applies
- Paper-specific engineering mathematics
Section: Core subject questions
- Marks
- 72
- How it applies
- Selected test-paper syllabus
Section: Total
- Marks
- 100
- How it applies
- 3-hour CBT
GATE AG Question and Marking Rules
| Question type | Possible marks | Negative marking |
|---|---|---|
| MCQ | 1 or 2 | Yes: 1/3 for a wrong 1-mark MCQ; 2/3 for a wrong 2-mark MCQ |
| MSQ | 1 or 2 | No negative marking and no partial marking |
| NAT | 1 or 2 | No negative marking |
Question type: MCQ
- Possible marks
- 1 or 2
- Negative marking
- Yes: 1/3 for a wrong 1-mark MCQ; 2/3 for a wrong 2-mark MCQ
Question type: MSQ
- Possible marks
- 1 or 2
- Negative marking
- No negative marking and no partial marking
Question type: NAT
- Possible marks
- 1 or 2
- Negative marking
- No negative marking
Subject-wise syllabus
GATE AG Syllabus 2027 - Official Section-wise Topics
The tables below preserve the section order and complete topic coverage published by IIT Madras for the GATE 2027 AG paper. Use each table as a study and revision checklist, and verify any later corrigendum against the official PDF.
Section 1: Engineering Mathematics
| Topic area | Official syllabus coverage |
|---|---|
| Linear Algebra | Matrices and determinants, linear and orthogonal transformations, Caley Hamilton theorem; Eigen values and Eigen vectors, solutions of linear equations. |
| Calculus | Limit, continuity and differentiability; partial derivatives; homogeneous function – Euler’s theorem on homogeneous functions, total differentiation; maxima and minima of function with several independent variables; sequences and series – infinite series, tests for convergence; Fourier, Taylor and MacLaurin series. |
| Vector Calculus | Vector differentiation, scalar and vector point functions, vector differential operators – del, gradient; divergence and curl; physical interpretations-line, surface and volume integrals; Stokes, Gauss and Green’s theorems. |
| Differential Equations | Linear and non -linear first order Ordinary Differential Equations (ODE); homogeneous differential equations, higher order linear ODEs with constant coefficients; Laplace transforms and their inverse; Partial Differential Equations - Laplace, heat and wave equations. |
| Probability and Statistics | Mean, median, mode and standard deviation; random variables; Poisson, normal and binomial distributions; correlation and regression analysis. |
| Numerical Methods | Solutions of linear and non-linear algebraic equations; numerical integration - trapezoidal and Simpson’s rule; numerical solutions of ODEs. |
Topic area: Linear Algebra
- Official syllabus coverage
- Matrices and determinants, linear and orthogonal transformations, Caley Hamilton theorem; Eigen values and Eigen vectors, solutions of linear equations.
Topic area: Calculus
- Official syllabus coverage
- Limit, continuity and differentiability; partial derivatives; homogeneous function – Euler’s theorem on homogeneous functions, total differentiation; maxima and minima of function with several independent variables; sequences and series – infinite series, tests for convergence; Fourier, Taylor and MacLaurin series.
Topic area: Vector Calculus
- Official syllabus coverage
- Vector differentiation, scalar and vector point functions, vector differential operators – del, gradient; divergence and curl; physical interpretations-line, surface and volume integrals; Stokes, Gauss and Green’s theorems.
Topic area: Differential Equations
- Official syllabus coverage
- Linear and non -linear first order Ordinary Differential Equations (ODE); homogeneous differential equations, higher order linear ODEs with constant coefficients; Laplace transforms and their inverse; Partial Differential Equations - Laplace, heat and wave equations.
Topic area: Probability and Statistics
- Official syllabus coverage
- Mean, median, mode and standard deviation; random variables; Poisson, normal and binomial distributions; correlation and regression analysis.
Topic area: Numerical Methods
- Official syllabus coverage
- Solutions of linear and non-linear algebraic equations; numerical integration - trapezoidal and Simpson’s rule; numerical solutions of ODEs.
Section 2: Farm Machinery
| Topic area | Official syllabus coverage |
|---|---|
| Machine Design | Design and selection of machine elements – gears, pulleys, chains and sprockets and belts; overload safety devices used in farm machinery; measurement of force, stress, torque, speed, displacement and acceleration on machine elements - shafts, couplings, keys, bearings and knuckle joints. |
| Farm Machinery | Soil tillage; forces acting on a tillage tool; hitch systems and hitching of tillage implements; functional requirements, principles of working, construction and operation of manual, animal, tractor and renewable energy operated equipment for tillage, sowing, planting, fertilizer application, inter -cultivation, spraying, mowing, chaff cutting, harvesting and threshing, calculation of performance parameters - field capacity, efficiency, performance index, application rate and losses; cost analysis of implements and tractors, equipment for precision agriculture. |
Topic area: Machine Design
- Official syllabus coverage
- Design and selection of machine elements – gears, pulleys, chains and sprockets and belts; overload safety devices used in farm machinery; measurement of force, stress, torque, speed, displacement and acceleration on machine elements - shafts, couplings, keys, bearings and knuckle joints.
Topic area: Farm Machinery
- Official syllabus coverage
- Soil tillage; forces acting on a tillage tool; hitch systems and hitching of tillage implements; functional requirements, principles of working, construction and operation of manual, animal, tractor and renewable energy operated equipment for tillage, sowing, planting, fertilizer application, inter -cultivation, spraying, mowing, chaff cutting, harvesting and threshing, calculation of performance parameters - field capacity, efficiency, performance index, application rate and losses; cost analysis of implements and tractors, equipment for precision agriculture.
Section 3: Farm Power
| Topic area | Official syllabus coverage |
|---|---|
| Sources of Power | Sources of power on the farm — human, animal, mechanical, electrical, wind, solar and biomass; bio-fuels and their use in farm mechanization. |
| Farm Power | Thermodynamic principles of I.C. engines; I.C. engine cycles; engine components; fuels and combustion; lubricants and their properties; I.C. engine systems – fuel, cooling, lubrication, ignition, electrical, intake and exhaust; selection, operation, maintenance and repair of I.C. engines; power efficiencies and measurement, engine performance curves; calculation of power, torque, fuel consumption, heat load and power losses; |
| Tractors and Power tillers | Type, selection, maintenance and repair of tractors and power tillers; tractor clutches and brakes; power transmission systems – gear trains, differential, final drives and power take -off; |
| Official coverage | mechanics of tractor chassis; traction theory; three point hitches - free link and restrained link operations; steering and hydraulic control systems used in tractors; tractor tests and performance; human engineering and safety considerations in design of tractor and agricultural implements. |
Topic area: Sources of Power
- Official syllabus coverage
- Sources of power on the farm — human, animal, mechanical, electrical, wind, solar and biomass; bio-fuels and their use in farm mechanization.
Topic area: Farm Power
- Official syllabus coverage
- Thermodynamic principles of I.C. engines; I.C. engine cycles; engine components; fuels and combustion; lubricants and their properties; I.C. engine systems – fuel, cooling, lubrication, ignition, electrical, intake and exhaust; selection, operation, maintenance and repair of I.C. engines; power efficiencies and measurement, engine performance curves; calculation of power, torque, fuel consumption, heat load and power losses;
Topic area: Tractors and Power tillers
- Official syllabus coverage
- Type, selection, maintenance and repair of tractors and power tillers; tractor clutches and brakes; power transmission systems – gear trains, differential, final drives and power take -off;
Topic area: Official coverage
- Official syllabus coverage
- mechanics of tractor chassis; traction theory; three point hitches - free link and restrained link operations; steering and hydraulic control systems used in tractors; tractor tests and performance; human engineering and safety considerations in design of tractor and agricultural implements.
Section 4: Soil and Water Conservation Engineering
| Topic area | Official syllabus coverage |
|---|---|
| Fluid Mechanics | Ideal and real fluids, properties of fluids; hydrostatic pressure and its measurement; continuity equation, kinematics and dynamics of flow; Bernoulli’s theorem; laminar and turbulent flow in pipes, Darcy-Weisbach and Hazen -Williams equations; flow through orifices, weirs and notches; flow in open channels, dimensional analysis – concepts of geometric dimensionless numbers. |
| Soil Mechanics | Engineering properties of soils; fundamental definitions and relationships; index properties of soils; permeability and seepage analysis; shear strength, Soil compaction and Proctor test, Mohr’s circle of stress, active and passive earth pressures; stability of slopes, Terzaghi’s one dimensional soil consolidation theory. |
| Hydrology | Hydrological cycle and measurement of its components; meteorological parameters and their measurement; analysis of precipitation data; runoff estimation; hydrograph analysis, unit hydrograph theory and application; stream flow measurement; flood routing, hydrological reservoir and channel routing, Infiltration – indices and equations, drought and its classification. |
| Surveying and Leveling | Measurement of distance and area; instruments for surveying and levelling; chain surveying, methods of traversing; measurement of angles and bearings, plane table surveying; types of levelling; the Theodolite traversing; contouring; total station, introduction to GPS survey, computation of areas and volume. |
| Soil and Water Erosion | Mechanics of soil erosion - wind and water erosion: soil erosion types, factors affecting erosion; soil loss estimation; biological and engineering measures to control erosion; terraces and bunds; vegetative waterways; gully control structures, drop, drop inlet and chute spillways; earthen dams. |
| Watershed Management | Watershed characterization and land use capability classification; water budgeting in watershed, rainwater harvesting, check dams and farm ponds. |
Topic area: Fluid Mechanics
- Official syllabus coverage
- Ideal and real fluids, properties of fluids; hydrostatic pressure and its measurement; continuity equation, kinematics and dynamics of flow; Bernoulli’s theorem; laminar and turbulent flow in pipes, Darcy-Weisbach and Hazen -Williams equations; flow through orifices, weirs and notches; flow in open channels, dimensional analysis – concepts of geometric dimensionless numbers.
Topic area: Soil Mechanics
- Official syllabus coverage
- Engineering properties of soils; fundamental definitions and relationships; index properties of soils; permeability and seepage analysis; shear strength, Soil compaction and Proctor test, Mohr’s circle of stress, active and passive earth pressures; stability of slopes, Terzaghi’s one dimensional soil consolidation theory.
Topic area: Hydrology
- Official syllabus coverage
- Hydrological cycle and measurement of its components; meteorological parameters and their measurement; analysis of precipitation data; runoff estimation; hydrograph analysis, unit hydrograph theory and application; stream flow measurement; flood routing, hydrological reservoir and channel routing, Infiltration – indices and equations, drought and its classification.
Topic area: Surveying and Leveling
- Official syllabus coverage
- Measurement of distance and area; instruments for surveying and levelling; chain surveying, methods of traversing; measurement of angles and bearings, plane table surveying; types of levelling; the Theodolite traversing; contouring; total station, introduction to GPS survey, computation of areas and volume.
Topic area: Soil and Water Erosion
- Official syllabus coverage
- Mechanics of soil erosion - wind and water erosion: soil erosion types, factors affecting erosion; soil loss estimation; biological and engineering measures to control erosion; terraces and bunds; vegetative waterways; gully control structures, drop, drop inlet and chute spillways; earthen dams.
Topic area: Watershed Management
- Official syllabus coverage
- Watershed characterization and land use capability classification; water budgeting in watershed, rainwater harvesting, check dams and farm ponds.
Section 5: Irrigation and Drainage Engineering
| Topic area | Official syllabus coverage |
|---|---|
| Soil-Water-Plant Relationship | Water requirement of crops; consumptive use and evapotranspiration; measurement of infiltration, soil moisture and irrigation water infiltration. |
| Irrigation Water Conveyance and Application Methods | Design of irrigation channels and underground pipelines; irrigation scheduling; surface, sprinkler and micro irrigation methods, design and evaluation of irrigation methods; irrigation efficiencies. |
| Agricultural Drainage | Drainage coefficient; planning, design and layout of surface and sub-surface drainage systems; leaching requirement and salinity control; irrigation and drainage water quality and reuse; non - conventional drainage system. |
| Groundwater Hydrology | Groundwater occurrence; ground water movement; Darcy’s Law, steady and unsteady flow in confined and unconfined aquifers, groundwater exploration techniques; overview of groundwater recharge estimation and artificial recharge techniques. |
| Wells and Pumps | Types of wells, steady flow through wells; design and construction of water wells; classification of pumps; pump characteristics; pump selection and installation. |
Topic area: Soil-Water-Plant Relationship
- Official syllabus coverage
- Water requirement of crops; consumptive use and evapotranspiration; measurement of infiltration, soil moisture and irrigation water infiltration.
Topic area: Irrigation Water Conveyance and Application Methods
- Official syllabus coverage
- Design of irrigation channels and underground pipelines; irrigation scheduling; surface, sprinkler and micro irrigation methods, design and evaluation of irrigation methods; irrigation efficiencies.
Topic area: Agricultural Drainage
- Official syllabus coverage
- Drainage coefficient; planning, design and layout of surface and sub-surface drainage systems; leaching requirement and salinity control; irrigation and drainage water quality and reuse; non - conventional drainage system.
Topic area: Groundwater Hydrology
- Official syllabus coverage
- Groundwater occurrence; ground water movement; Darcy’s Law, steady and unsteady flow in confined and unconfined aquifers, groundwater exploration techniques; overview of groundwater recharge estimation and artificial recharge techniques.
Topic area: Wells and Pumps
- Official syllabus coverage
- Types of wells, steady flow through wells; design and construction of water wells; classification of pumps; pump characteristics; pump selection and installation.
Section 6: Agricultural Process Engineering
| Topic area | Official syllabus coverage |
|---|---|
| Engineering properties of agriculture produce | Physical, thermal, frictional, rheological and electrical properties. |
| Evaporation and Drying | Concentration and drying of liquid foods – evaporators, tray, drum and spray dryers; osmotic dehydration and freeze drying; hydrothermal treatments; drying and milling of cereals, pulses and oilseeds; drying kinetics; psychrometry – properties of air-water vapor mixture. |
| Size Reduction and Material Handling | Mechanics and energy requirement in size reduction of agriculture produce; particle size analysis for comminuted solids; size separation by screening; fluidization of granular solids-pneumatic, bucket, screw and belt conveying; cleaning and grading; effectiveness of separation; centrifugal separation of solids, liquids and gases; homogenization; filtration and membrane separation. |
| Processing of Agriculture Produce | Processing of seeds, spices, fruits and vegetables; value addition of agriculture produce. |
| Storage Systems | Controlled and modified atmosphere storage; perishable food storage, godowns, bins and grain silos, packaging material and machines. |
Topic area: Engineering properties of agriculture produce
- Official syllabus coverage
- Physical, thermal, frictional, rheological and electrical properties.
Topic area: Evaporation and Drying
- Official syllabus coverage
- Concentration and drying of liquid foods – evaporators, tray, drum and spray dryers; osmotic dehydration and freeze drying; hydrothermal treatments; drying and milling of cereals, pulses and oilseeds; drying kinetics; psychrometry – properties of air-water vapor mixture.
Topic area: Size Reduction and Material Handling
- Official syllabus coverage
- Mechanics and energy requirement in size reduction of agriculture produce; particle size analysis for comminuted solids; size separation by screening; fluidization of granular solids-pneumatic, bucket, screw and belt conveying; cleaning and grading; effectiveness of separation; centrifugal separation of solids, liquids and gases; homogenization; filtration and membrane separation.
Topic area: Processing of Agriculture Produce
- Official syllabus coverage
- Processing of seeds, spices, fruits and vegetables; value addition of agriculture produce.
Topic area: Storage Systems
- Official syllabus coverage
- Controlled and modified atmosphere storage; perishable food storage, godowns, bins and grain silos, packaging material and machines.
Section 7: Dairy and Food Engineering
| Topic area | Official syllabus coverage |
|---|---|
| Heat and Mass Transfer | Steady state heat transfer in conduction, convection and radiation; transient heat transfer in simple geometry; working principles of heat exchangers; diffusive and convective mass transfer; simultaneous heat and mass transfer in agricultural processing op erations; material and energy balances in food processing systems; water activity, sorption and desorption isotherms. |
| Unit operations in Dairy and Food engineering | Blanching, homogenization, pasteurization, sterilization. |
| Preservation of Food | Kinetics of microbial death – pasteurization and sterilization of milk and other liquid foods; preservation of food by cooling and freezing; refrigeration and cold storage basics and applications. |
Topic area: Heat and Mass Transfer
- Official syllabus coverage
- Steady state heat transfer in conduction, convection and radiation; transient heat transfer in simple geometry; working principles of heat exchangers; diffusive and convective mass transfer; simultaneous heat and mass transfer in agricultural processing op erations; material and energy balances in food processing systems; water activity, sorption and desorption isotherms.
Topic area: Unit operations in Dairy and Food engineering
- Official syllabus coverage
- Blanching, homogenization, pasteurization, sterilization.
Topic area: Preservation of Food
- Official syllabus coverage
- Kinetics of microbial death – pasteurization and sterilization of milk and other liquid foods; preservation of food by cooling and freezing; refrigeration and cold storage basics and applications.
GATE AG Syllabus 2027: exam pattern and key details
| Detail | Current information |
|---|---|
| Exam | GATE |
| Paper / stage | AG · Agricultural Engineering |
| Current cycle | 2027 |
| Page type | Syllabus |
| Conducting body | GATE |
| Language | English |
Detail: Exam
- Current information
- GATE
Detail: Paper / stage
- Current information
- AG · Agricultural Engineering
Detail: Current cycle
- Current information
- 2027
Detail: Page type
- Current information
- Syllabus
Detail: Conducting body
- Current information
- GATE
Detail: Language
- Current information
- English
Common mistakes to avoid
Do not prepare from an old syllabus without comparing it with the latest official notice and the requirements for your exact exam stage.
Candidates also ask
The official AG syllabus contains 7 sections: Engineering Mathematics; Farm Machinery; Farm Power; Soil and Water Conservation Engineering; Irrigation and Drainage Engineering; Agricultural Process Engineering; Dairy and Food Engineering. The complete topic coverage is arranged in section-wise tables on this page.
GATE AG is a 100-mark, 3-hour Computer-Based Test. General Aptitude carries 15 marks and the remaining marks follow the paper-specific distribution shown above.
The initial GATE 2027 combination table permits these secondary codes when AG is primary: CE. Check the official portal for later changes.
Frequently asked questions
Use the featured PDF button on this page. It opens the database-hosted copy of the official IIT Madras AG syllabus.
Yes. General Aptitude is compulsory in every GATE 2027 test paper and carries 15 marks.
The paper uses Multiple Choice Questions, Multiple Select Questions and Numerical Answer Type questions carrying one or two marks.
Negative marking applies only to incorrect MCQs. MSQ and NAT questions have no negative marking, and MSQs have no partial marking.
Follow the official section order, complete topic-level concepts and examples, solve previous-year questions after each unit, and use full-length mock tests only after completing the major sections.
Downloads
Official GATE AG Syllabus 2027 PDF
- Download GATE AG Agricultural Engineering Syllabus 2027 PDFNEWFEATUREDDownload
Official resources
GATE 2027 Syllabus HubOpen the referenced exam resource.
View resource GATE 2027 NotificationOpen the referenced exam resource.
View resource Official GATE AG Syllabus PDFOpen the referenced exam resource.
View resource GATE 2027 Information Brochure PDFOpen the referenced exam resource.
View resource IIT Madras Test Papers and SyllabusOpen the referenced exam resource.
View resource GATE official websiteVisit the conducting body’s official website.
View resource GATE Organising Institute official websiteVerify the latest rules and notices at the official source.
View resource
Topics covered
- GATE AG syllabus 2027
- Agricultural Engineering
- GATE 2027 PDF
- IIT Madras
Research methodology and editorial review
Research methodology
GovtJobsNet editors compare the latest official GATE notice, conducting-body resources and published amendments before updating this page. Where an official 2027 document is pending, the page is marked and reviewed again after release.
- Last updated
- 4 August 2026
- Content cycle
- GATE 2027
Candidate questions and discussion
Ask a question about this GATE syllabus guide. Do not share personal application details.