Here’s the official GATE 2025 Mechanical Engineering (ME) syllabus, along with key details to help you prepare effectively:
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 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 differential equations.
Section 2: Applied Mechanics and Design
Engineering Mechanics: Free-body diagrams and equilibrium; friction and its applications including rolling friction, belt-pulley, brakes, clutches, screw jack, wedge, vehicles, etc.; trusses and frames; virtual work; kinematics and dynamics of rigid bodies in plane motion; impulse and momentum (linear and angular) and energy formulations; Lagrange’s equation.
Mechanics of Materials: Stress and strain, elastic constants, Poisson’s ratio; Mohr’s circle for plane stress and plane strain; thin cylinders; 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; testing of materials with universal testing machine; testing of hardness and 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 single degree of freedom systems, effect of damping;vibration isolation; resonance; critical speeds of shafts.
Machine Design: Design for static and dynamic loading; failure theories; fatigue strength and the S-N diagram; principles of the design of machine elements such as bolted, riveted and welded joints; shafts, gears, 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; 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; basics of compressible fluid flow.
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,Heisler’s charts; thermal boundary layer, dimensionless parameters in free and forced convective heat transfer, heat transfer correlations for flow over flat plates and through pipes, 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, behavior of ideal and real gases; zeroth and first laws of thermodynamics, calculation of work and heat in various processes; second law of thermodynamics; thermodynamic property charts and tables, availability and irreversibility; thermodynamic relations.
Applications: Power Engineering: Air and gas compressors; vapour and gas power cycles,concepts of regeneration and reheat. I.C. Engines: Air-standard Otto, Diesel and dual cycles. 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.
Section 4: Materials, Manufacturing and Industrial Engineering
Engineering Materials: Structure and properties of engineering materials, phase diagrams, heat treatment, stress-strain diagrams for engineering materials.
Casting, Forming and Joining Processes: Different types of castings, design of patterns, moulds and cores; solidification and cooling; riser and gating design. Plastic deformation and yield criteria;fundamentals of hot and cold working processes; load estimation for bulk (forging, rolling,extrusion, drawing) and sheet (shearing, deep drawing, bending) metal forming processes;principles of powder metallurgy. Principles of welding, brazing, soldering and adhesive bonding.
Machining and Machine Tool Operations: Mechanics of machining; basic machine tools; single and multi-point cutting tools, tool geometry and materials, tool life and wear; economics of machining; principles of non-traditional machining processes; principles of work holding, jigs and fixtures; abrasive machining processes; NC/CNC machines and CNC programming.
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; concepts of coordinate-measuring machine(CMM).
Computer Integrated Manufacturing: Basic concepts of CAD/CAM and their integration tools;additive manufacturing.
Production Planning and Control: Forecasting models, aggregate production planning, scheduling,materials requirement planning; lean manufacturing.
Inventory Control: Deterministic models; safety stock inventory control systems.
Operations Research: Linear programming, simplex method, transportation, assignment, network flow models, simple queuing models, PERT and CPM.
Fluid Mechanics (incompressible + compressible — added in 2019)
Heat Transfer (Heisler’s charts highlighted post-2020)
4. Manufacturing and Industrial Engineering
Weightage: 25–30 marks
Topics: Engineering Materials, Metal Casting, Forming, Joining Processes, Machining and Machine Tool Operations, Metrology, CIM, Production Planning, Operations Research
Inventory Models (with Safety Stock in recent years)
Additive Manufacturing (added in 2022)
Lean Manufacturing (emphasized post-2023)
5. General Aptitude
Weightage: 15 marks
Topics: Verbal Ability, Numerical Ability
Year-wise Subject Weightage Overview
Year
Engineering Mathematics
Applied Mechanics & Design
Fluid Mechanics & Thermal Sciences
Manufacturing & Industrial Engineering
General Aptitude
2015
15
20
30
25
15
2016
13
22
28
27
15
2017
14
21
29
26
15
2018
13
23
31
24
15
2019
13
24
32
23
15
2020
13.5
23.5
32.5
23
15
2021
13
24
33
22
15
2022
13
25
34
21
15
2023
13
24.5
33.5
22
15
2024
13
24
33
23
15
2025
13
23
32
24
15
Key Observations
Engineering Mathematics: Maintains a consistent weightage of 13–15 marks across all years.
Applied Mechanics and Design: Shows a slight increase in weightage over the years, indicating its growing importance.
Fluid Mechanics & Thermal Sciences: Remains a significant portion of the exam, with a steady weightage.
Manufacturing & Industrial Engineering: Experiences fluctuations, reflecting changes in exam patterns and focus areas.
General Aptitude: Consistently holds a weightage of 15 marks.
Are you aiming to crack the GATE Mechanical Engineering (ME) exam? Whether your goal is a top PSU job, admission to premier IITs/NITs, or a solid GATE score, this guide will walk you through everything — from syllabus breakdown to study strategies, book recommendations, and time management.
What is the GATE Exam?
The Graduate Aptitude Test in Engineering (GATE) is a national-level competitive exam that tests the understanding of engineering concepts across various disciplines. GATE ME is one of the most popular and competitive papers due to its broad applications in government jobs and higher studies.
Exam Pattern for GATE ME
Before diving into preparation, it’s crucial to understand the exam format:
Total Marks: 100
Duration: 3 hours
Question Types: MCQ, MSQ, NAT
Sections:
General Aptitude: 15 marks
Engineering Mathematics: ~13–15 marks
Mechanical Core Subjects: ~70 marks
Important Subjects & Weightage
Here’s a breakdown of the key subjects and their approximate weightage based on past year trends:
Subject
Approx. Weightage
Engineering Mathematics
13–15 marks
Strength of Materials (SOM)
7–9 marks
Theory of Machines (TOM)
6–8 marks
Machine Design
2–3 marks
Fluid Mechanics (FM)
6–8 marks
Thermodynamics & Heat Transfer
10–12 marks
Manufacturing Engineering
10–12 marks
Industrial Engineering
3–5 marks
6-Month Study Plan for GATE ME
Here’s a realistic 6-month preparation plan, assuming you start from scratch:
Months 1–2: Foundation Building
Focus on: Engineering Mathematics, SOM, TOM
Watch lectures or read standard books
Start solving topic-wise questions after each concept
Months 3–4: Core Subjects
Focus on: Thermodynamics, Fluid Mechanics, HMT, Machine Design
Daily practice is a must
Make concise notes for formulas and tricks
Month 5: Remaining Subjects + Revision
Complete: Manufacturing, Industrial Engineering
Begin revising old subjects regularly
Start light test series (subject-wise tests)
Month 6: Full Mock Tests + Final Revision
Attempt full-length mock tests every 3–4 days
Analyze your performance: accuracy, time usage, and weak areas
Revise notes and formula sheets thoroughly
Best Books for GATE Mechanical Engineering
Here are some must-have books for each subject:
Subject
Recommended Book
Thermodynamics
P.K. Nag / Cengel
Strength of Materials
Gere & Timoshenko / B.C. Punmia
Theory of Machines
S.S. Rattan
Fluid Mechanics
R.K. Bansal / Cengel
Heat Transfer
J.P. Holman
Machine Design
V.B. Bhandari
Manufacturing
P.N. Rao / Amitabh Ghosh
Industrial Engineering
O.P. Khanna
Engineering Mathematics
B.S. Grewal
General Aptitude
Made Easy Handbook / RS Aggarwal
Practice & Mock Tests
Solve previous 10–15 years’ GATE ME papers
Join a reputed test series (e.g., Made Easy, ACE Academy, Exergic)
Maintain an error log and revisit difficult topics
Focus on both accuracy and speed
Tips to Maximize Your Score
Don’t ignore Engineering Mathematics and General Aptitude — they’re scoring sections!
Make formula sheets and short notes for every subject
Revise regularly to retain formulas and concepts
Stay consistent and avoid last-minute cramming
Final Thoughts
Preparing for GATE ME is a journey that demands patience, discipline, and smart strategy. Stick to your plan, focus on conceptual clarity, and keep testing yourself regularly. Whether you’re targeting IITs, NITs, or PSUs, this plan will set you on the right track.
