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SYLLABUS GATE Agricultural Engineering Syllabus 2027: AG PDF and Exam Pattern
GATE AG syllabus 2027 with the official PDF, 100-mark exam pattern and complete section-wise topic tables for Agricultural Engineering.
Updated:
GATE AG syllabus 2027Agricultural EngineeringGATE 2027 PDFIIT Madras
Use the available GATE AG Syllabus 2027 download resources and review the detailed syllabus, unit-wise topics, exam pattern information, preparation guidance below.
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Key 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.
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 |
General Aptitude
Marks
15
How it applies
Common to all GATE papers
Engineering Mathematics
Marks
13
How it applies
Paper-specific engineering mathematics
Core subject questions
Marks
72
How it applies
Selected test-paper syllabus
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 |
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
MSQ
Possible marks
1 or 2
Negative marking
No negative marking and no partial marking
NAT
Possible marks
1 or 2
Negative marking
No negative marking
Syllabus Breakdown
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 | 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. |
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 | 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. |
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 | 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. |
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 | 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. |
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 | 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. |
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 | 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. |
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 | 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. |
Download Official PDFs & Question Papers
Official GATE AG Syllabus 2027 PDF
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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.