GATE Mechanical Syllabus 2027: PDF & Topics

Official sections

4

Numbered in the ME syllabus PDF

General Aptitude

15 marks

Separate official syllabus, included below

Subject marks

85

Of 100; General Aptitude is the other 15

Syllabus status

2027 document

Compare the cited official versions

Four section headings do not mean four small study tasks. This page reproduces the official GATE 2027 Mechanical Engineering syllabus and highlights the individual entries within those groups. General Aptitude is published separately and is also summarised below.

Use the official wording for scope, the version comparison for documented differences, and our separately labelled study suggestions for planning. Neither the number of headings nor the length of a paragraph determines marks or difficulty.

GATE 2027 ME syllabus: how the paper is organised

The official GATE 2027 Mechanical Engineering syllabus has 4 numbered sections. A paragraph or heading is a formatting unit, not a measure of study time, difficulty or marks. Use this section checklist to navigate the source, then make smaller revision tasks from the actual concepts under each section.

The full GATE 2027 ME syllabus, section by section

Below is the complete syllabus as published, section by section. The wording is the Organizing Institute's own — it has not been paraphrased, because you are going to make study decisions from it.

Section 1: Engineering Mathematics

• Linear Algebra: Matrix algebra, systems of linear equations, eigen values and eigen vectors.
• Calculus: Functions of single variable, limit, continuity and differentiability, mean value theorems, indeterminate forms; evaluation of definite and improper integrals; double and triple integrals; partial derivatives, total derivative, Taylor series (in one and two variables), maxima and minima, Fourier series; gradient, divergence and curl, vector identities, directional derivatives, line, surface and volume integrals, applications of Gauss, Stokes and Green's theorems.
• Differential Equations: First order equations (linear and nonlinear); higher order linear differential equations with constant coefficients; Euler-Cauchy equation; initial and boundary value problems; Laplace transforms; solutions of heat, wave and Laplace's equations.
• Complex Variables: Analytic functions; Cauchy-Riemann equations; Cauchy's integral theorem and contour integral formula; Taylor and Laurent series.
• Probability and Statistics: Definitions of probability, sampling theorems, conditional probability; mean, median, mode and standard deviation; random variables, binomial, Poisson and normal distributions.
• Numerical Methods: Numerical solutions of linear and non-linear algebraic equations; integration by trapezoidal and Simpson's rules; single and multi-step methods for ordinary differential equations.

Section 2: Applied Mechanics and Design

• Engineering Mechanics: Free-body diagrams and equilibrium; friction and its applications including rolling resistance, belt-pulley, brakes, clutches, screw jack, wedge, vehicles, etc.; plane trusses and frames; virtual work; kinematics and dynamics of rigid bodies in plane motion; impulse and momentum (linear and angular) and energy formulations.
• Mechanics of Materials: Stress and strain, elastic constants and their relationships; stress and strain components transformations in 2D; Mohr's circle for plane stress and plane strain; thin-walled pressure vessels; shear force and bending moment diagrams; bending and shear stresses; concept of shear centre; deflection of beams; torsion of circular shafts; Euler's theory of columns; energy methods; thermal stresses; strain gauges and rosettes; Mechanical properties of materials, toughness, hardness, impact strength.
• Theory of Machines: Displacement, velocity and acceleration analysis of plane mechanisms; dynamic analysis of linkages; cams; gears and gear trains; flywheels and governors; balancing of reciprocating and rotating masses; gyroscope.
• Vibrations: Free and forced vibration of linear systems with single and two degrees of freedom, damping estimation and effects; vibration isolation, transmissibility ratio; resonance; critical speeds of shafts; Control system, PID controller, transfer function.
• Machine Design: Design for static and dynamic loading; failure theories; fatigue strength and the S-N diagram; principles and design of machine elements such as bolted, riveted and welded joints; shafts, gears, belt drives, rolling and sliding contact bearings, brakes and clutches, springs.

Section 3: Fluid Mechanics and Thermal Sciences

• Fluid Mechanics: Fluid properties; fluid statics, forces on submerged bodies, stability of floating bodies; control-volume analysis of mass, momentum and energy; fluid acceleration; differential equations of continuity and momentum; concept of velocity potential; Bernoulli's equation; dimensional analysis; viscous flow of incompressible fluids, boundary layer, elementary turbulent flow, flow through pipes, head losses in pipes, bends and fittings; One dimensional high speed compressible fluid flow; flow through converging and converging-diverging nozzles.
• Heat Transfer: Modes of heat transfer; one dimensional heat conduction, resistance concept and electrical analogy, heat transfer through fins; unsteady heat conduction, lumped parameter system, thermal boundary layer, dimensionless parameters in free and forced convective heat transfer, heat transfer correlations for flow over flat plates and through pipes; boiling and condensation; effect of turbulence; heat exchanger performance, LMTD and NTU methods; radiative heat transfer, Stefan-Boltzmann law, Wien's displacement law, black and grey surfaces, view factors, radiation network analysis.
• Thermodynamics: Thermodynamic systems and processes; properties of pure substances, behaviour of ideal and real gases; zeroth, first and second laws of thermodynamics, calculation of work, heat, energy changes and entropy changes in various processes; application of first and second laws for analysis of closed and open systems; thermodynamic property charts and tables, availability and irreversibility; thermodynamic relations.
• Applications: Power Engineering: vapour and gas power cycles, concepts of regeneration and reheat; I.C. Engines: Air-standard Otto, Diesel and dual cycles; Basics of Combustion: Air-Fuel Ratio, Equivalence Ratio; Refrigeration and air-conditioning: Vapour and gas refrigeration and heat pump cycles, properties of moist air, psychrometric chart, basic psychrometric processes; Turbomachinery: Impulse and reaction principles, velocity diagrams, Pelton-wheel, Francis and Kaplan turbines, steam and gas turbines, Air and gas compressors, pumps and pump characteristics.

Section 4: Materials, Manufacturing and Industrial Engineering

• Engineering Materials: Crystal structure of common metals, phase diagrams, heat treatment; Properties and applications of engineering materials - metals and alloys, polymers, composites and ceramics; Engineering and true stress-strain diagrams.
• Casting, Forming and Joining Processes: Different types of casting processes; Patterns, moulds and core; Solidification and cooling, riser and gating design, casting defects; Plastic deformation and yield criteria; Hot working and cold working; Principles of bulk forming and sheet forming processes and estimation of load in these processes; Fundamentals of powder metallurgy and its applications; Principles of welding, brazing, soldering; Solid-state welding processes, adhesive bonding; Non-destructive testing methods.
• Machining and Machine Tool Operations: Basic machining operations and machine tools; Single-point and multipoint cutting tools; Geometry of single-point turning tools - ASA and ORS systems; Mechanics of machining; Cutting tool materials, tool life and tool wear; Economics of machining; Abrasive machining processes; Principles and applications of non-traditional machining processes; Principles of work holding, jigs and fixtures.
• Additive Manufacturing: Principles of different types of additive manufacturing processes for engineering materials; Additively manufactured products - advantages, limitations, and applications.
• Metrology and Inspection: Limits, fits and tolerances; Linear and angular measurements; Comparators; Interferometry; Form and finish measurement; Alignment and testing methods; Tolerance analysis in manufacturing and assembly; Principle of coordinate-measuring machine (CMM).
• Computer Aided Manufacturing and Automation: Basic concepts of CAD/CAM and their integration tools; NC/CNC machines and CNC programming; Pneumatic, electro-pneumatic, and hydraulic actuators for automation; Programmable logic controllers.
• Production Planning and Control: Work study, Productivity, Forecasting models, Aggregate production planning, Scheduling, Materials requirement planning, Six sigma, Lean manufacturing, Inventory Control - deterministic models, safety stock, inventory control systems, Quality and reliability concepts for product lifecycle analysis.
• Operations Research: Linear programming, Simplex method, Transportation, Assignment, Network flow models, Simple queuing models, PERT and CPM.

General Aptitude: the other 15 marks

General Aptitude is common to all GATE papers and is published separately from the ME document. The following is a scope summary, not a substitute for the official 2027 General Aptitude syllabus PDF.

• Verbal Aptitude: basic English grammar and vocabulary in context, reading comprehension and narrative sequencing.
• Quantitative Aptitude: data interpretation; computation and estimation including ratios, percentages, powers, logarithms, permutations, combinations and series; mensuration, geometry, elementary statistics and probability.
• Analytical Aptitude: deduction, induction, analogy, numerical relations and reasoning.
• Spatial Aptitude: translation, rotation, scaling, mirroring, assembling and grouping shapes; paper folding, cutting and patterns in two and three dimensions.

What to notice in the 2027 ME syllabus

Unpack the Applications entry

Section 3 lists Fluid Mechanics, Heat Transfer and Thermodynamics, followed by Applications. That final entry includes power cycles, I.C. engines and combustion basics, refrigeration and air-conditioning with psychrometry, and turbomachinery. Convert these into separate revision tasks instead of ticking off Applications after studying only one of them.

Additive Manufacturing is explicitly named

Section 4 lists principles of additive manufacturing process types for engineering materials and the advantages, limitations and applications of their products. Computer Aided Manufacturing and Automation also names CAD/CAM integration, NC/CNC machines and programming, actuators, and programmable logic controllers. Check course coverage against these entries rather than assuming a traditional machining chapter covers them.

Control-system concepts appear inside Vibrations

The Vibrations entry in Section 2 ends with Control system, PID controller, transfer function. There is no separate control-systems heading. Include these concepts in the checklist while avoiding the assumption that the entire EE or EC control syllabus is imported into ME.

Section 4 also contains industrial engineering

Production Planning and Control includes work study, forecasting, scheduling, materials requirement planning, Six Sigma, lean manufacturing and inventory control. Operations Research includes linear programming, simplex, transportation and assignment problems, network flow, simple queuing, PERT and CPM. These are official scope, not optional additions to manufacturing.

GATE 2026 vs 2027: selected syllabus comparisons

Checked 2026-09-06: we compared the text of the official IIT Guwahati GATE 2026 PDF with the official IIT Madras GATE 2027 PDF linked below. The rows are editorial summaries of selected passages, not verbatim transcriptions or an official change log. PDF layout, spacing and hyphenation differences are normalized; section and PDF-page references identify the compared scope. This is not an exhaustive list of additions or removals, and unchanged components are labelled explicitly.

How the ME syllabus maps to marks

Mechanical Engineering is a three-hour computer-based test of 65 questions and 100 marks. Of those, 15 marks are General Aptitude, 13 marks are Engineering Mathematics drawn from Section 1 of the syllabus above, and the remaining 72 marks come from the core ME sections.

General Aptitude and Engineering Mathematics together account for 28 marks. Our planning recommendation is to practise both throughout preparation rather than treating them as optional. The distribution alone does not establish their difficulty or your likely score.

A study order for the ME syllabus

Our suggested order follows prerequisites. It is not a marks-per-hour ranking, and it should be adjusted if you already have strong foundations in one track.

1. 1Engineering Mechanics, then Mechanics of Materials: practise force balances, stress and strain before relying on them in design calculations.
2. 2Thermodynamics: establish system boundaries, properties, heat/work conventions and first- and second-law reasoning before applications.
3. 3Fluid Mechanics, then Heat Transfer: connect conservation equations and flow behaviour to convection; study conduction and radiation with their own assumptions.
4. 4Theory of Machines and Vibrations: work through kinematics and dynamics, including the named control-system concepts.
5. 5Machine Design and thermal applications: revisit the prerequisite model each time a new application is introduced.
6. 6Manufacturing and Industrial Engineering: schedule a parallel track that explicitly includes Additive Manufacturing, automation, production planning and Operations Research.
7. 7Engineering Mathematics and General Aptitude: use recurring practice; ME mathematics includes Numerical Methods.

Worked example

Original illustration: heat is not just the internal-energy rise

This is an original teaching illustration, not an official PYQ or a predicted question. Its purpose is to practise a method under explicit assumptions, not to forecast topic weightage or exam difficulty.

A closed, frictionless piston-cylinder contains 2 kg of ideal gas. It is heated quasi-statically from 300 K to 350 K at a constant pressure of 100 kPa. Use constant cv = 0.718 kJ/(kg·K) and gas constant R = 0.287 kJ/(kg·K). There is no mass transfer, no change in kinetic or potential energy and no work mode except boundary work. Take Q positive into the gas and W positive when done by the gas. Find the volume change, W, ΔU and Q.

1. 1The temperature rise is ΔT = 350 - 300 = 50 K. For this fixed mass of ideal gas at constant pressure, pΔV = mRΔT. Thus ΔV = 2 × 0.287 × 50 / 100 = 0.287 m³, using 1 kPa·m³ = 1 kJ.
2. 2Quasi-static boundary work is W = ∫p dV = pΔV = 100 × 0.287 = 28.7 kJ. It is positive because the gas expands and does work on its surroundings; a closed system is not necessarily a rigid container.
3. 3For the ideal gas with constant cv, ΔU = m cv ΔT = 2 × 0.718 × 50 = 71.8 kJ. This depends on temperature change, not on using a constant-volume process.
4. 4The closed-system first law is ΔU = Q - W, so Q = ΔU + W = 71.8 + 28.7 = 100.5 kJ. Cross-check with cp = cv + R = 1.005 kJ/(kg·K): at constant pressure with only boundary work, m cp ΔT = 100.5 kJ. Using m cv ΔT as Q would omit the expansion work.

Answer: ΔV = 0.287 m³; W = +28.7 kJ by the gas; ΔU = +71.8 kJ; Q = +100.5 kJ into the gas.

Source check: 2026-09-06. The conceptual reading below supports the method; the official syllabus PDF supports topic scope only. Neither source supplies or endorses this original worked example.

Preparation checklist

Use these editorial prompts for a weekly plan and individual study sessions. Adjust the workload to your available time and current understanding. They are not an official study schedule or a score guarantee, and this one example does not cover the whole paper.

• At the start of the week, select unfinished topics from the official ME syllabus across thermal sciences, mechanics/design and manufacturing/industrial engineering. Assign a concrete problem-solving task to each session you can actually attend.
• Before each thermodynamics problem, draw the system boundary, label closed system or control volume, write the heat/work signs and cross out energy terms only when the assumptions justify it.
• In the next mechanics session, draw a free-body diagram before writing equilibrium or motion equations. State the support constraints and check the dimensions of the final force, moment, stress or deflection.
• During one manufacturing or industrial-engineering session this week, write the process assumptions and units before calculating; for a scheduling problem, draw the network and check the critical path rather than only quoting project duration.
• Once this week, attempt a timed mixed set including Engineering Mathematics and General Aptitude. Separate property-selection errors from sign, unit and algebra errors, and identify whether each thermal answer is per unit mass or for the whole system.
• In the review session, use MIT section 2.4 to explain why cv can determine ΔU even at constant pressure. Redo one missed energy balance after 48 hours with a changed process constraint, and carry unresolved mistakes into next week's session plan.

Practising GATE ME questions against this syllabus

A syllabus tells you the scope; past questions tell you the depth. Two topics can occupy one line each in the PDF and differ by an order of magnitude in how hard they are actually examined — the only way to calibrate that is to solve questions tagged to the specific topic and see what comes back.

Use the GATE ME topic map to organise revision and the GATE ME resource hub for available question-backed study companions, released papers and official past-paper links. Read the companion GATE ME 2027 exam guide for dates, eligibility and the full pattern.

GATE 2027 ME syllabus FAQs

How many sections are in the GATE Mechanical 2027 syllabus?

The ME subject PDF contains four broad sections. Each includes multiple named areas, so four sections should not be interpreted as four equally sized subjects. General Aptitude is published separately.

Is Additive Manufacturing in the ME syllabus?

Yes. Section 4 explicitly includes principles of additive manufacturing process types for engineering materials and the advantages, limitations and applications of additively manufactured products.

Does GATE ME include PID controllers?

Yes. Control system, PID controller and transfer function are listed within Vibrations in Section 2. The document does not create a separate control-systems section.

Is Operations Research part of the syllabus?

Yes. Section 4 names linear programming, simplex, transportation and assignment problems, network flow models, simple queuing models, PERT and CPM. Production Planning and Control is another entry in the same section.

Where can I download the official Mechanical syllabus?

Use the IIT Madras PDF linked near the beginning of this article. The version-comparison section also provides the previous official PDF; General Aptitude has its own linked document.

Does IIT Madras publish guaranteed subject-wise weightage?

The official allocation is 15 marks for General Aptitude, 13 for Engineering Mathematics and 72 for core ME content. Any finer historical breakdown needs an identified paper, year and counting method; it is not a guaranteed 2027 allocation.

Exam dates, the registration schedule, fees and eligibility for this paper are covered in full in the GATE ME 2027 exam guide. Dates follow the official GATE 2027 Important Dates page, checked 2026-09-06, which IIT Madras marks liable to change. The registration schedule has been revised. Always confirm on gate2027.iitm.ac.in before acting on any deadline.