GATE XE Syllabus, Exam Pattern, Eligibility, Important Dates
40 topics across 4 subjects. Every question carries a written explanation.
GATE XE is the Engineering Sciences paper of the Graduate Aptitude Test in Engineering, one of 30 papers in GATE 2027, organised by IIT Madras. It's a three-hour computer based test of 100 marks, and the IITs, IISc, NITs and public sector recruiters read the score like any other GATE score.
You build the paper yourself. Section XE0, Engineering Mathematics, is compulsory and worth 15 marks. Then you pick any two of nine optional sections, 35 marks each. That's 36 possible papers under one code, and you choose during the exam, not when you apply.
XE absorbed the TF paper in 2027. Textile Engineering and Fibre Science was a standalone paper (TF) in GATE 2026. It's gone from the 2027 list and its syllabus is now Section XE9. XE's sections were also renumbered, from letters A to I in 2026 to 0 to 9. The paper count stayed at 30 because Robotics and Automation was added.
Registration opened on 2 September 2026 and the exam runs over six days in February 2027.
Last checked against the official notification on .
GATE XE Details
Exam Pattern
| Mode | Computer Based Test (CBT) |
| Duration | 3 hours |
| Medium | English |
| Questions | 65: 10 General Aptitude + 55 subject |
| Total marks | 100 |
| Paper code | XE, one of 30 papers |
Where the marks are
| Component | Marks | Chosen? |
|---|---|---|
| General Aptitude | 15 | no |
| XE0: Engineering Mathematics | 15 | no, compulsory |
| First optional section | 35 | yes |
| Second optional section | 35 | yes |
XE0 is 15 marks, not the 13 a standard GATE paper gives mathematics, and it's a separate section rather than part of the subject total. 70 of the 100 marks are in sections you pick.
The nine optional sections
| Code | Section |
|---|---|
| XE1 | Fluid Mechanics |
| XE2 | Materials Science |
| XE3 | Solid Mechanics |
| XE4 | Thermodynamics |
| XE5 | Polymer Science and Engineering |
| XE6 | Food Technology |
| XE7 | Atmospheric and Oceanic Sciences |
| XE8 | Energy Science |
| XE9 | Textile Engineering and Fibre Science |
GATE says XE and XL candidates choose sections during the exam, while GG and XH candidates fix theirs at application.
Question types
| Type | Answer | Wrong answer |
|---|---|---|
| MCQ, 1 mark | one of four options | −1/3 |
| MCQ, 2 marks | one of four options | −2/3 |
| MSQ, multiple select | one or more options | no penalty |
| NAT, numerical answer | typed on a virtual keypad | no penalty |
MSQ gives no partial credit: you need every correct option and no wrong one. An on-screen virtual calculator is provided; physical calculators aren't allowed.
Two papers
With XE as your primary paper, the second may be AE, CE, CH, CY, DA, ME, MT, NM, PH or PI. That's ten partners, the longest list in the two-paper table. DA has nine, CS eight, AG one, MN none.
Syllabus
From the GATE 2027 XE syllabus published by IIT Madras. XE0 is compulsory; you attempt any two of XE1 to XE9. The official combined XE syllabus PDF has the full detail for each section.
General Aptitude: 15 marks, common to all papers
Verbal aptitude: basic English grammar, vocabulary, reading and comprehension, narrative sequencing. Quantitative aptitude: data interpretation, 2- and 3-dimensional plots, maps and tables; numerical computation and estimation (ratios, percentages, powers, exponents and logarithms, permutations and combinations, mensuration and geometry, elementary statistics and probability). Analytical aptitude: logic (deduction and induction), analogy, numerical relations and reasoning. Spatial aptitude: transformation of shapes (translation, rotation, scaling, mirroring, assembling and grouping); paper folding, cutting and patterns in 2 and 3 dimensions.
XE0: Engineering Mathematics (compulsory, 15 marks)
Linear algebra: determinant, inverse and rank of a matrix; systems of linear equations and the conditions for a unique, no, or infinite solution; eigenvalues and eigenvectors, their properties for symmetric matrices, diagonalisation; the Cayley-Hamilton theorem. Calculus: functions of a single variable (limits, indeterminate forms and L'Hospital's rule, continuity and differentiability, mean value theorems, maxima and minima, Taylor's theorem, the fundamental and mean value theorems of integral calculus, definite and improper integrals, areas and volumes of revolution); functions of two variables (limits, continuity, partial, directional and total derivatives, maxima, minima and saddle points, Lagrange multipliers, double integrals); sequences and series (convergence, the Cauchy condensation, ratio, root and integral tests, power series, Taylor series). Vector calculus: gradient, divergence and curl; line integrals and Green's theorem. Complex variables: complex numbers, the Argand plane and polar form, De Moivre's theorem, analytic functions, the Cauchy-Riemann equations. Ordinary differential equations: first order linear and non-linear equations; second order linear equations with constant coefficients; the Cauchy-Euler equation; second order linear equations with variable coefficients; the Wronskian; variation of parameters; the eigenvalue problem for second order constant-coefficient equations; power series solutions at ordinary points. Partial differential equations: classification of second order linear PDEs; the one-dimensional heat and wave equations; the two-dimensional Laplace equation; separation of variables; the Fourier series method. Probability and statistics: axioms of probability, conditional probability, the total probability theorem and Bayes' theorem; mean, variance and standard deviation of random variables.
XE1: Fluid Mechanics
Classification of flows; hydrostatics and buoyancy; kinematics of fluid motion; integral and differential analysis; dimensional analysis; internal flows; potential flow; external flows and boundary layers.
XE2: Materials Science
Structure of materials (crystallography, Bravais lattices, Miller indices, close-packed, carbon and ionic structures, amorphous materials, polymers, defects); thermodynamics, kinetics and phase transformations (phase diagrams, diffusion, solidification, TTT and CCT, martensite, glass transition); mechanical, electronic, magnetic, thermal and optical properties; characterisation; processing (heat treatment of steels and aluminium alloys, silicon processing, sintering); corrosion and polymer degradation.
XE3: Solid Mechanics
Rigid bodies (equilibrium, trusses and frames, friction, minimum potential energy, dynamics); deformable bodies (stress and strain transformation, Mohr's circle, elastic constants, Hooke's law, thermal stresses, theories of failure, axial, shear and bending stresses, combined stresses, deflection); vibrations.
XE4: Thermodynamics
Basic concepts; pure substances; first and second laws; entropy; thermodynamic relations; cycles; mixtures of ideal gases.
XE5: Polymer Science and Engineering
Polymer chemistry and characterisation; synthesis and polymerisation; polymer physics and rheology; additives; processing; testing; recycling.
XE6: Food Technology
Food chemistry and nutrition; food microbiology (growth and death kinetics, spoilage, toxins, fermented and probiotic foods); food products technology (thermal and non-thermal processing, packaging, cereal, oil, fruit and vegetable, plantation crop, milk and animal products, standards); food engineering (mass and energy balance, momentum, heat and mass transfer, mechanical and thermal operations, psychrometry).
XE7: Atmospheric and Oceanic Sciences
Atmospheric science: vertical structure and composition of the atmosphere; blackbody radiation and radiation balance; modes of heat transfer in the atmosphere; the greenhouse effect; cloud types; the laws of thermodynamics and the gas laws; the hydrostatic equation; the Clausius-Clapeyron equation; adiabatic processes; humidity; atmospheric stability; the global radiation budget and the role of greenhouse gases; the Navier-Stokes and continuity equations; compressible and incompressible fluids; pressure gradient, centripetal, centrifugal and Coriolis forces; geostrophic, gradient and cyclostrophic balances; circulation and vorticity; the general circulation of the atmosphere; broad features of the Indian monsoon; fundamentals of tropical cyclones. Ocean sciences: vertical profiles of temperature and salinity; stability and double diffusion; the equation of state; conservation of mass, momentum, heat and salt; inertial currents; geostrophic motion; air-sea surface fluxes; wind-driven circulation and the Ekman and Sverdrup transports; storm surges, tides, tsunamis and wind waves; eddies and gyres; thermohaline circulation; chemical properties of seawater; ocean acidification; biogeochemical cycling of nutrients; the biological pump; biological productivity; marine ecology.
XE8: Energy Science
Energy resources, conversion and systems; energy storage.
XE9: Textile Engineering and Fibre Science
The syllabus of the former TF paper. Textile fibres: classification, structure and properties. Yarn manufacture, fabric manufacture and textile testing, including air permeability, wetting and wicking, water-vapour transmission and thermal resistance of fabrics. Chemical processing (XE9.5): impurities in natural fibre; singeing; chemistry and practice of preparatory processes for cotton; preparatory processing of wool and silk; mercerisation of cotton; preparatory processes for manmade fibres and their blends; optical brightening agents; classification of dyes; dyeing of cotton, wool, silk, polyester, nylon and acrylic with the appropriate dye classes; dyeing of polyester/cotton and polyester/wool blends; dyeing machines; dyeing processes and machines for cotton knitted fabrics; dye-fibre interaction; thermodynamics and kinetics of dyeing; the relation between colour and chemical constitution; the Beer-Lambert law; the Kubelka-Munk theory and its application in colour measurement; methods for determining wash, light and rubbing fastness; roller and screen printing; preparation of printing paste and thickeners.
Eligibility Criteria
Qualification
You must be in the 3rd or higher year of any undergraduate degree, or already hold a government-approved degree in Engineering, Technology, Architecture, Science, Commerce, Arts or Humanities.
That covers B.E., B.Tech., B.Pharm., B.Arch., three-year B.Sc./B.A./B.Com., M.Sc./M.A./MCA and equivalents, MBBS, BDS, B.V.Sc., and professional society exams recognised as equivalent to B.E./B.Tech./B.Arch. With an international degree you must be in the 3rd year or higher, or hold a bachelor's degree of at least three years.
Not required
- No age limit.
- No limit on attempts.
- Your degree doesn't have to match the paper.
Full rules: GATE 2027 eligibility criteria.
How to Apply
Fee per paper
| Category | Regular window | Extended (late fee) window |
|---|---|---|
| Female / SC / ST / PwBD | Rs 1,000 | Rs 1,500 |
| All others, including foreign nationals | Rs 2,000 | Rs 2,500 |
Two papers cost double: Rs 2,000 / Rs 4,000 in the regular window, Rs 2,500 / Rs 4,500 in the extended one (see the official fee page). Every woman pays the concessional fee, whatever her category. PwBD means Person with Benchmark Disability.
The portal
Apply through GOAPS, the GATE Online Application Processing System, from gate2027.iitm.ac.in. GATE 2027 adds live facial verification and DigiLocker to registration.
A paid rectification window after the closing date lets you correct details already submitted. It isn't a second chance to register.
Participating Institutes
Admission
GATE scores are used for M.Tech, M.E., M.S. and direct PhD admission at the IITs, IISc, NITs, IIITs and many central and state institutions, and for MoE assistantships. The IITs and IISc admit through COAP; NITs and IIITs through CCMT. Both need their own registration. A GATE score alone admits nobody.
Check which sections a programme accepts before you choose. Departments admitting on XE usually name the sections they want: a polymer programme XE5, food engineering XE6, atmospheric sciences XE7, textiles XE9. Your two sections are on the scorecard.
Recruitment
PSUs that recruit through XE do so for particular disciplines, so the section pairing matters there too. Each issues its own advertisement with its own eligibility, shortlisting ratio and interview, and the list changes every year.
Exam Centres
GATE runs at centres across India and a few abroad. You list preferred cities when you apply. The allotted city is announced on 4 January 2027, before the admit card, so you can plan travel early.
Preferences are followed where there's capacity, but not guaranteed. The centre address is on the admit card.
Important Dates
GATE 2027, organised by IIT Madras.
| Stage | Date |
|---|---|
| GOAPS application opens | 2 September 2026 |
| Regular registration closes | 27 September 2026 |
| Extended registration closes (with late fee) | 5 October 2026 |
| Application rectification window | 14 – 21 October 2026 |
| Examination city announced | 4 January 2027 |
| Admit card | to be announced |
| Examination | 6, 7, 13, 14, 20 and 21 February 2027 |
| Results | 19 March 2027 |
The opening date moved twice, from 14 August 2026 to 27 August and then 2 September. IIT Madras says "all dates are liable to change", so check the official dates page.
There are six exam days this time, against four in GATE 2026, because of 30 papers and the new Robotics and Automation paper.
Admit Card
Download the admit card from GOAPS with your enrolment ID or email and password. The exam city comes first, on 4 January 2027; IIT Madras hasn't yet fixed the admit card date.
Bring it with the original photo ID whose details you entered in the application. A different document or a photocopy isn't accepted.
Result
Results are due on 19 March 2027 on gate2027.iitm.ac.in. You get two figures:
- Marks out of 100: what you scored in your session.
- GATE Score out of 1000: a normalised figure based on the qualifying mark and the top scorers. This is the number institutes and employers compare.
A paper held in several sessions is normalised across them. The score is valid for three years from the result.
The response sheet and provisional answer key come out before the result, with a paid challenge window. The final key may differ from the provisional one.
Cut Off
GATE publishes a qualifying mark for each paper and category with the result on gate2027.iitm.ac.in, due 19 March 2027. It's set from that year's paper, so older figures are only a rough guide.
Qualifying isn't admission. IIT M.Tech seats and PSU interview calls need a score well above it, and PSUs set their own GATE Score cut-offs in their own advertisements.
Preparation Tips
Pick your sections for the programme first
Seventy marks ride on the two optional sections. Choose ones you know, but check first what the programme you want will accept. A strong score in sections a department ignores is worth less than a modest one in the sections it reads.
Prepare three, sit two
Since you choose on the day, a third section is real insurance. Pick one that overlaps: XE1 and XE4 share a lot, as do XE2 and XE3, and XE5 and XE9 meet in polymer physics and fibre structure.
Don't neglect XE0
With General Aptitude, that's 30 marks before either optional section, the same for everyone. Skimping on it to polish a chosen section costs ranks.
TF candidates: you're now preparing XE9
The content carried across from TF. The change is that you sit it with XE0 and one more section. Most fibre-science candidates pair XE9 with XE5.
Answer every NAT and MSQ
Neither carries a penalty, so a blank is the only sure zero.
Official Links
GATE 2027 (IIT Madras): gate2027.iitm.ac.in
Combined XE syllabus: XE_GATE2027_CombinedSyllabus.pdf
XE0, XE7 and XE9 syllabi: XE0, XE7, XE9
All papers and syllabi: Test papers and syllabus
Pattern and marking: Question paper pattern
Two-paper combinations: Allowed pairs
Frequently Asked Questions
How many sections do I attempt in GATE XE?
Three: XE0 (compulsory, 15 marks) and any two of XE1 to XE9 (35 each). General Aptitude makes up the other 15.
When do I choose my two optional sections?
During the exam, not at application.
What happened to the GATE TF paper?
It was a standalone paper up to GATE 2026. In GATE 2027 its syllabus is Section XE9.
Which papers can I pair with XE?
AE, CE, CH, CY, DA, ME, MT, NM, PH or PI. The pairing works both ways.
Do my chosen sections appear on the scorecard?
Yes. Departments often name the sections they accept, so check before you choose.
Is there negative marking?
Only on MCQs: 1/3 for a wrong 1-mark question, 2/3 for a wrong 2-mark one. MSQ and NAT carry no penalty.
Atmospheric Dynamics (10)
- Fundamental Forces in the Atmosphere
- Equations of Motion in Rotating Frame
- Geostrophic and Gradient Wind
- Thermal Wind Balance
- Vorticity and Circulation
- Divergence and Vertical Motion
- Quasi-geostrophic Theory
- Atmospheric Waves
- Baroclinic Instability
- General Circulation of the Atmosphere
Atmospheric Thermodynamics (10)
- Composition and Structure of the Atmosphere
- Gas Laws and Atmospheric Variables
- Hydrostatic Equilibrium
- First Law Applied to the Atmosphere
- Adiabatic Processes and Lapse Rates
- Water Vapour and Humidity Variables
- Thermodynamic Diagrams
- Atmospheric Stability
- Convection and Buoyancy
- Entropy and Potential Temperature
Chemical Processing of Textiles (10)
- Water Quality for Textile Processing
- Singeing and Desizing
- Scouring of Cotton and Synthetics
- Bleaching Agents and Methods
- Optical Brightening
- Mercerisation Process Control
- Dyeing Machinery
- Printing Machinery
- Chemical Finishing Agents
- Process Control and Right First Time
Colour Science and Measurement (10)
- Nature and Perception of Colour
- Light Sources and Illuminants
- Colour Vision and Observer
- Additive and Subtractive Mixing
- CIE Colour Systems
- Colour Difference Formulae
- Spectrophotometry and Colorimetry
- Metamerism
- Computer Colour Matching
- Whiteness and Yellowness Indices
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