GATE 2021: Online Application Form, Branch-wise Exam Date, Exam Centres, Last Date to Apply

Exam Date : February 5, 2021 To February 14, 2021
Result Date : March 22, 2021

GATE stands for Graduate Aptitude Test in Engineering. It offers a wide range of job and education opportunities for aspiring engineers in India. GATE is an exam for postgraduate studies in Engineering. Candidates with a valid GATE score will be eligible for admission in premium institutes like the IITs for masters and doctoral programs. IIT Delhi conducted the GATE 2020 exam. IIT Bombay will conduct GATE 2021.

Latest News on GATE 2021

Latest Update:

  • September 14, 2020: The registration portal for the GATE 2021 Exam is open now. Candidates can apply for the exam on or before September 30, 2020. Click here to register.
  • August 27, 2020: Two new subjects have been introduced in GATE 2021. Environmental Science & Engineering (ES), and Humanities and Social Sciences (XH). Candidates can go through the below Syllabus section for more details.
  • August 13, 2020: IIT Bombay will conduct GATE 2021. The official brochure for GATE 2021 has been released as well as the registration process date which is on September 14, 2020.
  • The confirmed examination schedule for the GATE 2021 examination is announced. Check the exam dates section for the schedule.


What is the GATE 2021 Exam?

The GATE 2021 Exam intends to test the comprehensive knowledge of the student in the various subjects of undergraduate or postgraduate engineering courses. It happens to be one of the world's toughest exams to crack.

Graduate Aptitude Test in Engineering (GATE) is an examination conducted jointly by the Indian Institute of Science (IISc), Bangalore, and the seven Indian Institutes of Technology (at Bombay, Delhi, Guwahati, Kanpur, Kharagpur, Madras, and Roorkee) on behalf of the National Coordination Board (NCB)-GATE, Department of Higher Education, Ministry of Human Resource Development (MHRD), Government of India. Given below are the highlights of the GATE Exam.

GATE 2021 Exam Details
Exam Name Graduate Aptitude Test in Engineering
Acronym GATE
Exam Level National
Conducting Body
IIT Bombay
Course Offered M.E./ M.Tech/ Ph.D. and PSU Recruitment
Exam Mode Online (Computer Based Test)
Medium English
Exam Duration 3 hours
Types of Questions Multiple Choice Questions (MCQ) and Numerical Answer Type (NAT)
Official Website

The GATE exam is conducted every year on behalf of the National Coordination Board (NCB)-GATE, MHRD, Government of India. Each year, one of the following institutes assumes the responsibility of conducting the entrance test.

IIT Bombay IIT Delhi
IIT Guwahati IIT Kanpur
IIT Kharagpur IIT Madras
IIT Roorkee IISC Bangalore

Importance of GATE 2021 Exam

A valid GATE score is an essential requirement for getting admission or financial assistance for the following from institutions supported by MHRD or other Government agencies.

  • Master's Programs
  • Direct Doctoral Programs in Engineering/Technology/Architecture
  • Doctoral programs in relevant branches of Science

Moreover, the GATE score is also mandatory to be eligible for the recruitment process in many Public Sector Undertakings (PSUs).

Important Note!!!

GATE Score of any given year is valid for THREE years.

The score is impacted by the relative performance level of the candidate in a particular subject, which will be quantified or measured based on the examination data of the previous years. GATE exam is rated as one of the most difficult exams in India since it provides a lot of benefits to an examinee.

GATE 2021 Exam Date

IIT Bombay, the conducting authority has already released the official notification for the upcoming GATE 2021 exam. All the important dates have been updated here. Do visit this page regularly for further updates.

Event Date (Tentative)
Application Form (GOAPS Portal) Availability September 14, 2020 to September 30, 2020
Last date to register for the examination with late fee October 7, 2020
Last Date for Requesting Change of Exam City (additional fee must be paid) November 13, 2020
Admit Card Release Date January 8, 2021
Exam Dates February 5, 2021 (Friday)
February 6, 2021 (Saturday)
February 7, 2021 (Sunday)
February 12, 2021 (Friday)
February 13, 2021 (Saturday)
February 14, 2021 (Sunday)
Answer Key and Response Sheet Release Date To be announced
Last Date to Submit the Objections over Answer Key To be announced
GATE 2021 Result Date March 22, 2021 (Tentative)

GATE 2021 Exam Schedule

GATE 2021 will be conducted in two slots from February 5, 2021 to February 14, 2021 as mentioned below:

GATE 2021 Examination Schedule
Session Code Date and Day Time Slot Paper Code

February 5, 2021 to

February 14, 2021

09:30 AM – 12:30 PM
(Forenoon Session)
S2 02:30 PM – 05:30 PM
(Afternoon Session)
S3 09:30 AM – 12:30 PM (Forenoon Session) AR, BM, BT, CH, MA, MN, ST, XE, XL
S4 02:30 PM – 05:30 PM
(Afternoon Session)
S5 09:30 AM – 12:30 PM (Forenoon Session) EE, EY, TF
S6 02:30 PM – 05:30 PM (Afternoon Session) CS
S7 09:30 AM – 12:30 PM
(Forenoon Session)
S8 02:30 PM – 05:30 PM (Afternoon Session) CE2

GATE 2021 Application Form

The GATE 2021 website is out. The official dates for the GATE 2021 exam will be released. Applications are stipulated to begin from September 14, 2020 to October 7, 2020, (the extended date).

Candidates can fill the application form only in the online mode in the GOAPS (GATE Online Application Processing System) Portal.

Subject Code: Among the 25 papers available in GATE, the candidate has to select one particular paper in the application form.

How to Register for GATE 2021?

  • Visit the official website (
  • Enter all relevant details like name, email id, country, etc.
  • Create a password as per the given instructions. It should be unique and 8-15 characters long. It should also have a single number or alphabet.
  • Enter the captcha and click the ‘Submit’ button.
  • An SMS will be sent to your email id after a successful registration. You will also receive a mail on the registered email ID.

After the GATE 2021 registration, candidates can proceed to apply for GATE 2021. The GATE 2021 Application Form will be available on September 14, 2020. September 30, 2020, will be the last day to submit the application form without any late fee. Any late submission will incur an extra INR 500 and the date to do so will be October 7, 2020. November 13, 2020, will be the last date or window provided to correct mistakes in the application form.

How to apply for GATE 2021?

  • Step 1: Log in to the registered account and click on the 'Apply' button.
  • Step 2: Candidates have to update all the important fields like the photograph, signature, certificate of qualifying degree, category certificate (SC/ST/PwD), and/or learning disabilities certificate, wherever applicable.
  • Step 3: Candidates must enter the ID number as per any of the following documents: Passport / PAN Card / Voter ID / Aadhaar-UID / College ID / Employee ID / Driving License
Passport size photograph 2 kb -200 kb
Signature 2 kb-150 kb
Category Certificate (if any) 10 kb -300 kb
PwD Certificate (if any) 10 kb – 300 kb
  • Step 4: Next, candidates must proceed to the application fee payment.

GATE 2021 Application Fee

Based on the location of exam centres the GATE 2021 Application Fee varies and the tables below present that data.

Category Without Late Fee With Late Fee
SC/ST/PwD Students INR 750 INR 1250
Female Candidates INR 750 INR 1250
Other Candidates INR 1500 INR 2000

The application fee for Female or SC/ST/PwD candidates is INR 750. For candidates belonging to the General Category, the Fee is INR 1500. If candidates are paying after the last date of the application then they have to pay an extra amount of INR 500 for the application process.

GATE 2021 Application Fee for Foreign Candidates
Addis Ababa, Colombo, Dhaka, and Kathmandu US$ 50 US$ 70
Dubai and Singapore US$ 100 US$ 120

Candidates belonging to the foreign countries have to pay US$ 20 extra as a late fee if they apply after the last date of the application process.

  • Step 5: After this, the application form must be duly submitted.

A few points to keep in mind are:

  • Registration: Candidates have to give their name as per an identity proof. They have to give a valid email id, phone number. Finally, candidates have to create a password. All further communication will be done through the email id and phone number.
  • Enrolment ID: Each candidate will be provided with an enrolment Id, which will be sent to each candidate by mail. This reference ID will remain the same for all future communication.
  • Password: Finally, the candidate must create a password. It is much better and safe not to create a password which is easy, meaning students are expected not to keep their date of birth or names as their password.

GATE 2021 Eligibility

Candidates aspiring to write the GATE 2021 exam must know that there has been a significant change in the eligibility criteria. Earlier the requirement under educational qualification was 10 + 2 + 4 but now it has been revised to 10 + 2 + 3 which means that 3rd-year candidates are eligible to write the GATE 2021 exam.

Given below are the highlights of the GATE 2021 Eligibility Criteria:

Minimum Educational Qualification Bachelor's degree in Engineering and Technology from a recognized University
Age Criteria No Age Limit
Required Documents Degree Certificate or else Provisional Certificate from HOD or College Principal
Final year Students Candidates in the final year of qualifying degree are also eligible to apply, provided they submit the certificate from the Principal of the University or College.

Some professional societies conduct exams equivalent to the engineering exams as well. Candidates who take up these exams are also eligible to take the GATE 2021 entrance exam. These professional societies are listed below:

The Institutions of Engineers (IE)

The Institutions of Civil Engineers (ICE)

The Institution of Electronics & Telecommunication Engineers (IETE)

The Aeronautical Society of India (AeSI)

The Indian Institute of Chemical Engineers, including Polymer and Environmental Group (IIChemE)

The Indian Institute of Metals (IIM)

The Indian Institute of Industrial Engineers (IIE)


Having said this, students must make sure that these exams are conducted and approved by MHRD/ AICTE/MHRD/AICTE/UGC/UPSC as equivalent to B.E./B.Tech./B.Arch./B.Planning etc. Otherwise, they will not be eligible to appear for GATE Exam under any circumstances.

Foreign Candidates Eligibility for GATE 2021 Exam

In case of foreign nationals and Overseas Citizens of India (OCI), they should have completed or be in the final year of their Bachelor’s Degree (duration must be at least 4 years) in Engineering/Technology or they should have completed or be in the final year of their Post Graduate (Master's) Degree (duration must be at least 2 years) in any of the relevant subjects in science, preferably engineering and technology.

Documents Required for GATE 2021

If the candidate has already passed one of the qualifying examinations (in 2019 or earlier), then he/she must submit (i.e. upload) the degree certificate/provisional certificate/course completion certificate/professional certificate/membership certificate issued by the institute or society in the application form.

If the aspirant is expected to complete one of the qualifying criteria for any of the courses as specified in the brochure (page 6) he/she has to upload a Certificate from the Head of the Department/Institute (in the format given in Appendix A) or a copy of mark sheet for Section A of AMIE. This certificate must have the signature and seal of the Head of Institute/Department with the current date. Appendix B will have a list of the qualifying disciplines. Both the Appendices A and B will be available on the official website. Candidates must go through this carefully and comply with the requirements.

GATE 2021 Preparation

Students aspiring to appear for the GATE Exam can follow these tips given below. Most students think that GATE is a very difficult exam. But with proper knowledge about the basics and constant practice, they can easily ace this exam.

  • Scan the syllabus: Before beginning the GATE 2021 preparation it is important to know the topics involved in the syllabus. The best way to know about the syllabus is to go through the previous year question papers (based on the subject you choose) and gather as many sample/mock papers as possible. This will also give you an overall picture regarding the difficulty level of questions asked and information about the exam pattern. Also, refer to several reference books and study material to cover every topic.
  • Develop A Timetable: It is important to prepare a realistic timetable of your own. Focus on the basics during the initial stages of preparation and also give priority to practice. Learning the concepts and then practicing rigorously is very important to crack this exam.
  • Revise: Revision will help you stay in touch with the syllabus. After you learn certain concepts, it is important to revisit the topics once again and learn them. It will also help if you take short notes of what you learn. Writing down important formulae and other vital concepts will help you to revise before the exam. Also as there are a lot of books available in the market, picking the right GATE study material will help you to score well.
  • Choose Easy Subjects: Make sure you are able to get a perfect score in the fairly easy subjects. In other words, covering the easy subjects completely will help you to improve your score and thereby improve your AIR. Subjects like Digital Logic, Mathematics, and Aptitude are considered easy and high scoring.
  • Mock Tests: Taking mocks and analyzing them thoroughly is very important. Mock tests will train you for the actual test and also after analyzing a mock you will come to know about your strong and weak areas and this will help you focus on those particular topics and score well in the actual GATE 2021 exam.

Guidelines to select scribes

In case the student is disabled and cannot write the GATE 2021 Exam on their own for any particular reason, they can select a scribe to do it for them. There is an option with which the students can select their scribe. Otherwise, candidates can also approach the GATE authority to get a scribe. Go through the guidelines below before selecting a scribe.

Scribe Arranged by the candidate

  • The scribe arranged by a candidate must not be one who is attending the GATE 2021 exam. That scribe must have a qualification that is at least one step less than the candidate.
  • During the exam, the scribe shall not translate or interpret or emphasize the test paper elements to the candidate
  • If the candidate chooses to bring his or her scribe then it is the entire responsibility of the candidate to bring a scribe.
  • No money or honorarium will be paid from the GATE authorities to the scribe.

Scribe Arranged by GATE 2021 

  • Students must well before opting for the option of 'Scribe arrangement by GATE'.
  • If 'N' number of candidates have opted for this scribe service by GATE, then there will be at least 'N+1' scribes will be arranged by GATE to have some alternative options open.
  • Once again the scribe arranged by GATE will not translate or interpret or emphasize the test paper elements to the candidate.

GATE 2021 Syllabus

The GATE exam is conducted for 27 subjects. The candidate will be allowed to attend either one or two papers. The list of subjects as well as its code is provided in the GATE official information brochure (page 7). This brochure will be available on the official website.

The General Aptitude section and Engineering Mathematics sections are common for all the subjects and disciplines. General Aptitude constitutes 15% of the total paper weightage.

Each of the following subjects has been divided into two categories one is Core Topics and the other is Special Topics. 90% of the paper will constitute core topics and 10% of the paper will have special topics.

Candidates can go through the below GATE 2021 subject wise syllabus :

Note: Candidates who opt to take up two subject papers in the examination, should do so by first checking with the list of approved subject combinations and the list will be created based on the availability of infrastructure and exam date.

GATE 2021 Syllabus: General Aptitude

Below you can find the General Aptitude Syllabus for GATE 2021:

1.Verbal Ability

  • English Grammar
  • Sentence Completion
  • Verbal Analogies
  • Word Groups
  • Instructions
  • Critical Reasoning
  • Verbal Deduction

2.Numerical Ability:

  • Numerical computation
  • Numerical Estimation
  • Numerical Reasoning
  • Data Interpretation

GATE 2021 Syllabus: Biomedical Engineering Syllabus

Below you can find the Biomedical Engineering Syllabus for GATE 2021:

  • Electrical Circuits
  • Signals and Systems
  • Engineering Mathematics
  • Analog and Digital Electronics
  • Measurement and Digital Electronics
  • Medical Imaging System
  • Human Anatomy and Physiology
  • Sensors and Bioinstrumentations
  • Biomaterials
  • Biomechanics

GATE 2021 Syllabus: Aerospace Engineering Syllabus

Below you can find the Aerospace Engineering Syllabus for GATE 2021:

  • Laplace Transforms
  • Fourier Series
  • Numerical methods for linear and nonlinear algebraic equations
  • Numerical integration and differentiation.
  • Dynamic stability
  • Euler angle
  • Equations of motion
  • Aerodynamic forces and moments, stability & control derivatives
  • Decoupling of longitudinal and lateral-directional dynamics
  • Longitudinal modes; lateral-directional modes.
  • Orbit transfer
  • In-plane and out-of-plane
  • Elementary ideas of viscous flows including boundary layers
  • Wind Tunnel Testing
  • Measurement and visualization techniques
  • Vibration of beams
  • Theory of elasticity
  • Equilibrium and compatibility equations

GATE 2021 Syllabus: Agriculture Engineering Syllabus

Below you can find the Agriculture Engineering Syllabus for GATE 2021:

  • Farm Machinery
  • Engineering Mathematics
  • Farm Power
  • Soil and Water Conservation Engineering
  • Irrigation and Drainage Engineering
  • Agricultural Processing Engineering
  • Dairy and Food Engineering

GATE 2021 Syllabus: Architecture & Planning Syllabus

Below you can find the Architecture & Planning Syllabus for GATE 2021:

  • Architecture and Design
  • Building Materials, Construction, and Management
  • Building and Structures
  • Environmental Planning and Design
  • Urban Planning and Housing
  • Urban Design
  • Planning Techniques and Management
  • Services, Infrastructure, and Transportation

GATE 2021 Syllabus: Biotechnology Syllabus

Below you can find the Biotechnology Syllabus for GATE 2021:

  • Engineering Mathematics
  • Plant and Animal Biotechnology
  • General Biotechnology
  • Recombinant DNA Technology
  • Bioprocess Engineering and Process Biotechnology

GATE 2021 Syllabus: Civil Engineering Syllabus

Below you can find the Civil Engineering Syllabus for GATE 2021:

  • Engineering Mathematics
  • Environmental Engineering
  • Geotechnical Engineering
  • Geomatics Engineering
  • Structural Engineering
  • Water Resources Engineering
  • Transportation Engineering

GATE 2021 Syllabus: Chemical Engineering Syllabus

Below you can find the Chemical Engineering Syllabus for GATE 2021:

  • Engineering Mathematics
  • Process Calculations and Thermodynamics
  • Fluid Mechanics and Mechanical Operations
  • Heat Transfer
  • Mass Transfer
  • Chemical Reaction Engineering
  • Instrumentation and Process Control
  • Plant Design and Economics
  • Chemical Technology

GATE 2021 Syllabus: Computer Science and Information Technology Syllabus

Below you can find the Computer Science and Information Technology Syllabus for GATE 2021:

  • Computer Networks
  • Engineering Mathematics
  • Digital Logic
  • Computer Organization and Architecture
  • Programming and Data Structures
  • Algorithms
  • Theory of Computation
  • Compiler Design
  • Operating System
  • Databases
  • Computer Networks

GATE 2021 Syllabus: Chemistry Syllabus

Below you can find the Chemistry Syllabus for GATE 2021:

  • Physical Chemistry
  • Inorganic Chemistry
  • Organic Chemistry

GATE 2021 Syllabus: Electronics and Communication Engineering Syllabus

Below you can find the Electronics and Communication Engineering Syllabus for GATE 2021:

  • Engineering Mathematics
  • Networks, Signals, and Systems
  • Electronic Devices
  • Analog Circuits
  • Digital Circuits
  • Control System
  • Electromagnetics
  • Communication

GATE 2021 Syllabus: Electrical Engineering Syllabus

Below you can find the Electrical Engineering Syllabus for GATE 2021:

  • Engineering Mathematics
  • Electrical Circuits
  • Signals and Systems
  • Electromagnetic Fields
  • Electrical Machines
  • Power Systems
  • Control Systems
  • Electrical and Electronic Measurements
  • Analog and Digital Electronics
  • Power Electronics

GATE 2021 Syllabus: Ecology and Evolution Syllabus

Below you can find the Ecology and Evolution Syllabus for GATE 2021:

  • Evolution
  • Ecology
  • Mathematics and Quantitative Ecology
  • Behavioural Ecology

GATE 2021 Syllabus: Geology And Geophysics Syllabus

Below you can find the Geology And Geophysics Syllabus for GATE 2021:

  • Geology
  • Geophysics

GATE 2021 Syllabus: Instrumentation Engineering Syllabus

Below you can find the Instrumentation Engineering Syllabus for GATE 2021:

  • Engineering Mathematics
  • Analog and Digital Electronics
  • Control Systems
  • Electrical Circuits
  • Measurements
  • Sensors and Industrial Instrumentation
  • Communication and Optical Instrumentation

GATE 2021 Syllabus: Mathematics Syllabus

Below you can find the Mathematics Syllabus for GATE 2021:

  • Calculus
  • Complex Analysis
  • Linear Algebra
  • Rear Analysis
  • Ordinary Differential Equations
  • Algebra
  • Functional Analysis
  • Partial Differential Equations
  • Numerical Analysis
  • Linear Programming
  • Topology

GATE 2021 Syllabus: Mechanical Engineering Syllabus

Below you can find the Mechanical Engineering Syllabus for GATE 2021:

  • Applied Mechanics and Design
  • Material, Manufacturing and Industrial Engineering
  • Engineering Mathematics
  • Fluid Mechanics and Thermal Science

GATE 2021 Syllabus: Mining Engineering Syllabus

Below you can find the Mining Engineering Syllabus for GATE 2021:

  • Mine Development Surveying
  • Engineering Mathematics
  • Mining Methods and Machinery
  • Geomechanics and Ground Control
  • Mine Economics, Mine Planning, System Engineering
  • Surface Environment, Mine Ventilation, and Underground Hazards

GATE 2021 Syllabus: Metallurgical Engineering Syllabus

Below you can find the Metallurgical Engineering Syllabus for GATE 2021:

  • Engineering Mathematics
  • Physical Metallurgy
  • Thermodynamics and Rate Process
  • Extractive Metallurgy
  • Mechanical Metallurgy
  • Manufacturing Process

GATE 2021 Syllabus: Physics Syllabus

Below you can find the Physics Syllabus for GATE 2021:

  • Classical Mechanics
  • Mathematical Physics
  • Quantum Mechanics
  • Electromagnetic Theory
  • Thermodynamics and Statistical Physics
  • Atomic and Molecular Physics
  • Solid State Physics and Electronics
  • Nuclear and Particle Physics

GATE 2021 Syllabus: Production and Industrial Engineering Syllabus

Below you can find the Production and Industrial Engineering Syllabus for GATE 2021:

  • General Engineering
  • Quality and Reliability
  • Engineering Mathematics
  • Manufacturing Processes
  • Industrial Engineering
  • Operation Research an Operational Management

GATE 2021 Syllabus: Textile Engineering Syllabus

Below you can find the Textile Engineering Syllabus for GATE 2021:

  • Textile Engineering and Fibre Science
  • Engineering Mathematics

GATE 2021 Syllabus for Environmental Science and Engineering (ES)

Below you can find the major topics for Environmental Science and Engineering for GATE 2021:

  • Section 1: Mathematics Foundation
  • Section 2: Environmental Chemistry
  • Section 3: Environmental Microbiology
  • Section 4: Water Resources and Environmental Hydraulics
  • Section 5: Water & Wastewater Treatment and Management
  • Section 6: Air and Noise Pollution
  • Section 7: Solid and Hazardous Waste Management
  • Section 8: Global and Regional Environmental Issues
  • Section 9: Environmental Management and Sustainable Development

Gate 2021 Syllabus for Humanities and Social Sciences (XH)

Below you can find the major topics for Humanities and Social Sciences syllabus for GATE 2021:

GATE XH - B1: Reasoning and Comprehension Syllabus

  • Reading Comprehension
  • Expression
  • Analytical Reasoning
  • Logical Reasoning

GATE XH - C2: Economics Syllabus

  • Microeconomics
  • Macroeconomics
  • Statistics, Econometrics, and Mathematical Economics
  • International Economics
  • Public Economics
  • Development Economics
  • Indian Economy

GATE XH-C2 English Syllabus

  • Multi-genre literature in English
  • Anglophone and in English translation, literature from India and, extending to some degree, the larger Indian subcontinent
  • Literary criticism and theory; critical and cultural intellectual-traditions and
  • Approaches widely referred to and used in the discipline of English
  • English literary studies
  • History of English literature
  • Research approaches and methodologies, including interpretive techniques responsive to devices, concepts, literary forms, and genres.

GATE XH-C3 Linguistics Syllabus

  • Phonetics and Phonology, Morphology, Syntax, Semantics, and Pragmatics
  • Language and Linguistics
  • Sociolinguistics
  • Historical Linguistics
  • Areal Typology, Universals, Cross-linguistic Features
  • Methods of analysis and applied Linguistics

GATE XH-C4 Philosophy Syllabus

  • Contemporary Indian Philosophy – Vivekananda
  • Contemporary Western Philosophy
  • Classical and Modern Western Philosophy – Metaphysics, Epistemology, Ethics, Social and Political Philosophy, Logic
  • Classical Indian Philosophy

GATE XH-C5 Psychology Syllabus

  • Research Methods and Statistics
  • Research design: quantitative & qualitative, mixed methods.
  • Designing research: Research problems, purpose statement, Variables, and Operational Definitions, Hypothesis, Sampling.
  • Nature of quantitative & qualitative research
  • Statistics in Psychology
  • Experimental Designs:
  • The biological and evolutionary basis of behavior
  • Perception, Learning, Memory, and Forgetting
  • Cognition: Thinking, Intelligence, and Language: Basic elements of though: Concepts, Propositions, Imagery.

GATE XH-C6 Sociology Syllabus

  • Sociological Concepts
  • Family, Marriage, and Kinship
  • Sociological Theory
  • Sociology of Development
  • Indian Society / Sociology of India
  • Agrarian Sociology and Rural Transformation
  • Research Methodology and Methods

Aeronautical Engineering Syllabus for GATE 2021

The syllabus for Aeronautical Engineering is provided below

Section 1: Engineering Mathematics

Core Topics:

Linear Algebra: Vector algebra, Matrix algebra, systems of linear equations, the rank of a matrix, eigenvalues, and eigenvectors.

Calculus: Functions of single variable, limits, continuity and differentiability, mean value theorem, chain rule, partial derivatives, maxima and minima, gradient, divergence and curl, directional derivatives. Integration, Line, surface, and volume integrals. Theorems of Stokes, Gauss, and Green.

Differential Equations: First order linear and nonlinear differential equations, higher-order linear ODEs with constant coefficients. Partial differential equations and separation of variables methods.

Special Topics: Fourier Series, Laplace Transforms, Numerical methods for linear and nonlinear algebraic equations, Numerical integration and differentiation.

Section 2: Flight Mechanics

Core Topics:

Basics: Atmosphere: Properties, standard atmosphere. Classification of aircraft. Airplane (fixed-wing aircraft) configuration and various parts.

Airplane performance: Pressure altitude; equivalent, calibrated, indicated air speeds; Primary flight instruments: Altimeter, ASI, VSI, Turn-bank indicator. Drag polar; takeoff and landing; steady climb & descent, absolute and service ceiling; cruise, cruise climb, endurance or loiter; load factor, turning flight, V-n diagram; Winds: head, tail & crosswinds.

Static stability: Angle of attack, sideslip; roll, pitch & yaw controls; longitudinal stick fixed & free stability, horizontal tail position, and size; directional stability, vertical tail position, and size; dihedral stability. Wing dihedral, sweep & position; hinge moments, stick forces.

Special Topics: Dynamic stability: Euler angles; Equations of motion; aerodynamic forces and moments, stability & control derivatives; decoupling of longitudinal and lateral-directional dynamics; longitudinal modes; lateral-directional modes.

Section 3: Space Dynamics

Core Topics:

Central force motion, determination of trajectory, and orbital period in simple cases.

Special Topics: Orbit transfer, in-plane, and out-of-plane.

Section 4: Aerodynamics

Core Topics:

Basic Fluid Mechanics: Conservation laws: Mass, momentum (Integral and differential form);

Potential flow theory: sources, sinks, doublets, line vortex, and their superposition; Viscosity, Reynold's number.

Airfoils and wings: Airfoil nomenclature; Aerodynamic coefficients: lift, drag and moment; Kutta- Joukoswki theorem; Thin airfoil theory, Kutta condition, starting vortex; Finite wing theory: Induced drag, Prandtl lifting line theory; Critical and drag divergence Mach number.

Compressible Flows Basic concepts of compressibility, Conservation equations; One-dimensional compressible flows, Fanno flow, Rayleigh flow; Isentropic flows, normal and oblique shocks, Prandtl- Meyer flow; Flow through nozzles and diffusers.

Special Topics: Elementary ideas of viscous flows including boundary layers; Wind Tunnel Testing: Measurement and visualization techniques.

Section 5: Structures

Core Topics:

Strength of Materials: States of stress and strain. Stress and strain transformation. Mohr's Circle. Principal stresses. Three-dimensional Hooke's law. Plane stress and strain; Failure theories: Maximum stress, Tresca and von Mises; Strain energy. Castigliano's principles. Analysis of statically determinate and indeterminate trusses and beams. Elastic flexural buckling of columns. Flight vehicle structures: Characteristics of aircraft structures and materials. Torsion, bending, and flexural shear of thin-walled sections. Loads on aircraft.

Structural Dynamics: Free and forced vibrations of undamped and damped SDOF systems. Free vibrations of undamped 2-DOF systems.

Special Topics: Vibration of beams. Theory of elasticity: Equilibrium and compatibility equations, Airy’sstress function.

Section 6: Propulsion

Core Topics:

Basics: Thermodynamics, boundary layers, and heat transfer, and combustion thermochemistry.

Thermodynamics of aircraft engines: Thrust, efficiency and engine performance of turbojet, turboprop, turboshaft, turbofan and ramjet engines, thrust augmentation of turbojets, and turbofan engines. Aerothermodynamics of non-rotating propulsion components such as intakes, combustor, and nozzle.

Axial compressors: Angular momentum, work, and compression, the characteristic performance of a single axial compressor stage, the efficiency of the compressor, and degree of reaction.

Axial turbines: Axial turbine stage efficiency.

Centrifugal compressor: Centrifugal compressor stage dynamics, inducer, impeller, and diffuser.

Rocket propulsion: Thrust equation and specific impulse, vehicle acceleration, drag, gravity losses, multi-staging of rockets. Classification of chemical rockets, the performance of solid and liquid propellant rockets.

GATE 2021 Exam Pattern

The exam will take place for 3 hours in Computer Based Mode. GATE 2021 paper will contain 65 questions and for a total of 100 marks.

Questions are Multiple Choice Questions (MCQs) with 4 options. Each question will be either for 1 mark or 2 marks. This scheme will be applicable for all the subjects.

Negative Marks: There are negative marks for each incorrectly answered question. For each incorrectly answered 1 mark answer, 1/3rd marks will be deducted and the 2 mark questions will attract a penalty of 2/3rd marks.

Numerical Answer Type Questions:

These questions will not have any options and students must enter the right answer. The answer will generally be in integers. Even if the answer is in decimals, it is ideal to write up to three decimal points.

There are no negative marks for NAT questions.

Example Question

If the wire diameter of a compressive helical spring is increased by 2%, the change in spring stiffness (in %) is _____ (correct to two decimal places).

Marks Allotted

General Aptitude will constitute 10 questions for a total of 15 marks (15% of the total marks) in all the papers. This section is designed to test the language and analytical skills of the candidate.

In subjects with the following codes AE, AG, BM, BT, CE, CH, CS, EC, EE, IN, ME, MN, MT, PE, PI, TF and XE, Mathematics Paper will constitute 15% and General Aptitude will constitute 15% of the total marks. The remaining 70% will be constituted by the core subject-based questions.

For subjects with codes AR, CY, EY, GG, MA, PH, ST and XL 15% of the total marks go for General Aptitude. The other 85% is for the core subject-based questions.

Subject Code Mathematics General Aptitude Other (Core Subject)
AE, AG, BM, BT, CE, CH, CS, EC, EE, IN, ME, MN, MT, PE, PI, TF and XE, 15% 15% 70%
AR, CY, EY, GG, MA, PH, ST, and XL - 15% 85%

Note: You can know more about the types of questions in the GATE exam by visiting the official information brochure (page.21).

GATE 2021 Reference Books

This section contains specific books that are useful for GATE 2021 preparation. The GATE 2021 Reference books are listed below.

GATE 2021 Reference Books for Mechanical Engineering

  1. Theory of Machines by R.S Khurmi
  2. Engineering Mechanics by S.S Bhavikatti
  3. Production Engineering by Amitabh Ghosh

GATE 2021 Reference Books for Computer Science Engineering

  1. Software Engineering by Pressman Publications
  2. Computer Organisation by Carl Hamacher
  3. Theory of Computation by Ullman

GATE 2021 Reference Books for Electrical Engineering

  1. Network Analysis by Val Vulken Berg
  2. Signals and Systems by Oppenheim Wisky
  3. Electrical Machines by P.S. Bhimbra

GATE 2021 Reference Books for Electronics and Communication Engineering

  1. Electronic Devices and Circuits by Millman And Halkias
  2. Electrical Engg. (Problems and Solutions) by Natesan
  3. Millman's Integrated Electronics

GATE 2021 Admit Card

Candidates can download the admit card from the official GOAPS portal on January 8, 2021. The GATE 2021 Admit card will not be sent by post. All candidates are expected to download the admit card in colour print-out (preferred) and check all their details beforehand. Also, they have to carry a valid photo identification proof to the exam hall along with the admit card. Without these documents, one will not be allowed inside the exam centre. The identification document can be any one of the below: Passport / PAN card / Voter ID / Aadhaar-UID / College Id / Employee ID / Driving License

The admit card is valid only if the photograph and the signature on the admit card are found to be precise and clear.

How to download GATE 2021 Admit Card?

  • Visit the official GOAPS portal for GATE 2021
  • Click on 'Download Admit Card' link
  • Enter the registration number and password to log in and download the Admit Card.
  • Make sure to cross-check all details on the admit card before downloading it and taking a print out.

Details provided on GATE 2021 Admit Card

Candidates can check with the below information regarding the contents of the GATE 2021 Admit Card: Candidate’s Name, Candidates Signature and Photograph, Exam Date and Time Slot, Exam Day Instructions, Registration Number, Exam Centre Address, GATE Paper/Code

GATE 2021 Exam Centres

As far as GATE 2021 exam is concerned, the students can select a particular city. Students have the privilege of giving three cities. The second city that they choose must be of the same zone from which the first city is chosen. But the third city can be chosen from any of the zones and there is no restriction.

The list of zones and the names of cities in a zone is provided in the official notification page 9.

Remember the GATE exam will also take place in 6 cities outside India. There are 8 zonal exam centres for GATE 2021. Last year there were a total of 206 cities allotted for the GATE entrance exam. This year only 199 cities are chosen as test centres.

Latest Information on GATE 2021 Exam Centres List

  • In all the centers, the number of scribes will be more than the number required for PWD candidates.
  • All PWD candidates will be granted permission to visit the particular GATE Test Centre a day before the exam. This is to help them get familiarized with the venue.
GATE Zones GATE 2021 Examination Cities
IISc Bangalore Ananthapuramu, Angamaly, Bagalkot, Bellary, Belgaum, Bengaluru, Bidar, Davanagere, Hassan, Hubli, Hyderabad, Gulbarga, Kannur, Kasaragod, Kolar, Kozhikode, Kurnool, Malappuram, Mangaluru, Manipal, Mysore, Palakkad, Payyanur, Port Blair, Shimoga, Thrissur, Tumakuru, Vatakara
IIT Bombay Ahmedabad, Ahmednagar, Amravati, Anand, Aurangabad, Baramati, Bhavnagar, Bhuj, Gandhinagar, Goa, Jalgaon, Kankavli, Kolhapur, Mehsana, Mumbai, Nagpur, Nanded, Nashik, Navi Mumbai, Pune, Rajkot, Ratnagiri, Sangli, Satara, Solapur, Surat, Thane, Vadodara
IIT Delhi Ajmer, Alwar, Bahadurgarh-Rohtak, Bikaner, Faridabad, Greater Noida, Gurugram, Hisar, Indore, Jaipur, Jammu, Jodhpur, Karnal, Kota, Mathura, New Delhi, Palwal, Samba, Sikar, Udaipur, Ujjain
IIT Guwahati Agartala, Asansol-Durgapur, Burdwan, Dhanbad, Dibrugarh, Gangtok, Guwahati, Imphal, Itanagar, Jorhat, Kalyani, Muzaffarpur, Patna, Shillong, Silchar, Siliguri, Tezpur
IIT Kanpur Agra, Aligarh, Allahabad, Bareilly, Bhopal, Gorakhpur, Gwalior, Jabalpur, Kanpur, Lucknow, Varanasi
IIT Kharagpur Balasore, Berhampur (Odisha), Bhilai, Bhimavaram, Bhubaneswar, Bilaspur (CG), Cuttack, Eluru, Hooghly, Jamshedpur, Kakinada, Kharagpur, Kolkata, Raipur, Rajahmundry, Ranchi, Rourkela, Sambalpur, Tadepalligudem, Vijayawada, Visakhapatnam, Vizianagaram
IIT Madras Alappuzha, Aluva, Attingal, Bapatla, Chengannur, Chennai, Chittoor, Coimbatore, Cuddalore, Dindigul, Ernakulam, Erode-Thiruchengode, Gudur, Guntur, Idukki, Kadapa, Kanjirapally, Kanyakumari-Nagercoil, Karimnagar, Karur, Khammam, Kollam, Kothamangalam, Kottayam, Madurai, Muvattupuzha, Nalgonda, Namakkal, Nedumangad, Nellore, Ongole, Pala, Puducherry (Pondicherry), Punalur, Salem, Thanjavur, Thiruvananthapuram, Thiruvannamalai, Tiruchirapalli, Tirunelveli, Tirupati, Tuticorin, Vellore, Villupuram, Virudhunagar, Warangal
IIT Roorkee Ambala, Amritsar, Baddi, Bathinda, Bhimtal, Dehradun, Ghaziabad, Haldwani, Hamirpur, Jalandhar, Khanna, Kurukshetra, Ludhiana, Meerut, Mohali, Moradabad, Muzaffarnagar, Noida, Panipat, Pathankot, Patiala, Roorkee, Sangrur, Shimla-Solan, Sonepat, Una, Yamunanagar.

GATE 2021 Answer key

The conducting authority will release an official answer key a few weeks after the successful conduction of the GATE 2021 Exam. Candidates can crosscheck the answer keys with their answers to arrive at the possible score. Candidates can follow the below steps to download the answer key.

  • Step 1: Visit the official website.
  • Step 2: Login using the credentials provided at the time of registration.
  • Step 3: In the notification section, click on the 'answer key' link.
  • Step 4: View and download the answer key.

GATE 2021 Objection to Answer Key

The conducting authority of GATE 2021 given the candidates an option to raise objections on the official answer key. Candidates can follow the steps given below to raise objections

Step 1: Visit the official website.

Step 2: In the notification section, click on the 'Answer key' link.

Step 3: Login using the credentials provided at the time of registration.

Step 4: Select the paper that you appeared for.

Step 5: Click on the 'Raise Objection' button.

Step 6: Check the question number from the official answer key and enter the question id.

Step 7: Pay the relevant fee using the available payment methods and click on the 'Submit' button.

GATE 2021 Result

The much-awaited GATE 2021 result and the scorecard is available on the official GOAPS portal on March 22, 2021. Students can download the scorecard from March 22, 2021 to May 31, 2021.

After this date, if a candidate wants to download it, he or she must pay INR 500. However, the last date to get the GATE scorecard by paying the fine amount is December 31, 2020. After that, the scorecard cannot be accessed.

GATE Result Related Events Dates
GATE 2021 Results Release March 22, 2021 (Tentative)
Scorecard Download Period To be announced
Last date of Scorecard Download (with fine) To be announced

Important Note!!!

GATE Scorecard is valid for THREE years from the date of the scorecard released. This means the GATE 2021 score can be used for admission and job recruitment for three years from 2021.

GATE Cutoffs

Previous year cutoffs can be instrumental in devising a strategy to crack GATE 2021. Given below is a table of the GATE 2020 Cutoffs.

Sl. No Subject Code Qualifying Cutoff Marks
1 Life Sciences XL 36.7 33 24.5
2 Civil Engineering CE 28.2 25.4 18.8
3 Electrical Engineering EE 39.6 35.6 26.4
4 Computer Science and Information Technology CS 29.5 26.6 19.7
5 Mechanical Engineering ME 34.1 30.7 22.7
6 Petroleum Engineering PE 49.9 44.9 33.3
7 Electronics and Communication Engineering EC 26.7 24 17.8
8 Chemical Engineering CH 34.8 31.3 23.2
9 Chemistry CY 32 28.8 21.3
10 Biotechnology BT 35.9 32.3 23.9
11 Engineering Sciences XE 26.7 24 17.8
12 Textile Engineering and Fibre Science TF 40.1 36.1 26.7
13 Aerospace Engineering AE 33.5 30.2 22.3
14 Agricultural Engineering AG 28.3 25.5 18.9
15 Architecture and Planning AR 41 36.9 27.3
16 Ecology and Evolution EY 37.1 33.4 24.7
17 Geology and Geophysics GG 44.5 40.1 29.7
18 Instrumentation Engineering IN 31.9 28.7 21.3
19 Mathematics MA 25 22.5 16.7
20 Mining Engineering MN 31.5 28.4 21
21 Metallurgical Engineering MT 53.5 48.1 35.7
22 Physics PH 25.2 22.7 16.8
23 Production and Industrial Engineering PI 32.2 29 21.5
24 Statistics ST 32.5 29.2 21.7
25 Biomedical Engineering BM - - -
26 Environmental Science and Engineering ES - - -
27 Humanities and Social Science XH - - -

GATE 2021 Counselling

A valid GATE score is essential or opens the way for admission into colleges or even financial assistance or scholarships.

  • Master’s programs and direct Doctoral programs in Engineering/Technology/Architecture
  • Doctoral programs in relevant branches of Science, in the institutions supported by the MHRD and other Government agencies.

These are some programs for which taking the GATE 2021 entrance exam is mandatory.

To avail financial assistance (scholarship/assistantship), a candidate must first secure admission to a program in any of the central government supported institutes. Depending upon the norms adopted by a specific institute.

Each institute may have a different selection procedure, some may conduct an interview or a test after the GATE exam. The criteria for Post Graduate courses with the scholarships may be completely different.

After getting admission candidates must complete the procedures of MHRD scholarship/assistantship in the institute.

The admitting institute may also specify the total number of candidates for financial assistance (scholarship). Qualifying GATE is also a minimum requirement to apply for various fellowships awarded by many Government organizations.

Important Points for admission through GATE 2021

The GATE 2021 exam has 25 papers and the candidate has the complete right to choose the paper he or she wants. But some programs may accept a particular paper, hence it is mandatory to check what the admitting institute requires for the desired program and then apply.

For this candidates have to check the official website of the admission institute.

Documents Required for GATE 2021 Counselling

  • Appropriate Document for SC/ST (approved by competent authority)
  • Document for PWD candidates
  • Proper dyslexic certificate issued by any Dyslexia Association


If the candidates belonging to EWS or SC/ST category fail to produce a valid document for their category they will be treated as General Category candidates.

PSU Through GATE 2021

In the previous years, the GATE score has been used by various reputed Public Sector Undertakings (PSU) to provide recruitment. Some of the PSUs that recruit through GATE are listed below.

Bharat Heavy Electricals Limited (BHEL)

Gas Authority of India Limited (GAIL)

Hindustan Aeronautics Limited (HAL)

Indian Oil Corporation Limited (IOCL)

National Thermal Power Corporation (NTPC)

Nuclear Power Corporation of India Limited (NPCIL)

Oil and Natural Gas Corporation (ONGC)

Power Grid Corporation of India (PGCI).

Apart from these companies, direct recruitment to Group A level posts in Central Government is also done through a valid GATE score. Some of the posts are:

  • Senior Field Officer (Tele)
  • Senior Research Officer (Crypto)
  • Senior Research Officer (S&T) in Cabinet Secretariat


Generally, the notification for these kinds of posts is made in National Newspapers/Employment News/Rozgar Samachar.

GATE 2020 Exam Analysis

Given below is an analysis of the recently conducted GATE exam.

February 8, 2020 – Morning Session (Electrical Engineering)

  • Electrical Engineering paper of Gate 2020 was between moderately tough to tough by the students.
  • Compared to last year's Gate exam, this year was, therefore, tougher.
  • According to the students, Analog electronics contributed to most of the difficult questions.
  • Most of the questions were from Electrical Machines, followed by Signals and Systems and Power Electronics.
  • There were no direct questions asked in the paper so the candidate had to think logically and creatively.
  • There were many geometrical and numerical type questions in the paper.

Some of the topics asked in the paper were:

  • Differential equation, Maxima, Probability, Matrix
  • Thevenin’s theorem, Transient analysis,
  • Laplace transform, Z-transform, Fourier transform, Fourier series, LTI
  • SFG, Frequency response, Nyquist, Polar plot, RH criteria
  • Diodes, OP-AMP, MOSFET
  • Microprocessor, Sequential circuits
  • Rectifier, Choppers, Inverter
  • Electric field, Mutual inductance
  • Uncertainty(Error)
  • DC machines, Transformer, Induction machines
  • Load flow analysis, Transmission, and Distribution

February 8, 2020 – Afternoon Session (Computer Science Engineering)

  • The Computer Science exam was relatively easier as compared to last year's question paper.
  • According to students, the Gate Paper 2020 for computer science was not very lengthy.
  • Although the paper was easy some of the questions were tricky. Good preparation was an advantage in this scenario.
  • Most of the paper comprised of theoretical questions and there were very few numerical questions.
  • Some of the tricky questions were asked from topics such as algorithm, complexity, data structure, and computer organizations.
  • There were a total of 25 numerical answer type (NAT) questions.

Topics asked in the exam:

  • Probability, Matrix, Calculus, Increasing function
  • Min-heap, Binary tree, Linked lists
  • Double Hashing, Recurrence, Relation, Worst case, Time complexity, Post-order traversal
  • Predicate Logic, Groups, Graph colouring, Minimum spanning tree
  • Regular expression, minimal finite automata, decidability, context-free language, regular language, deterministic push-down automata
  • Memory, Decoder, Multiplexer
  • ER diagram , Functional dependency(Normal form), SQL, B+ tree,Conflict equivalent
  • Introduction, L-attribute bottom-up design

February 9, 2020 – Morning Session (Civil Engineering)

  • According to students, the paper was easier as compared to last year's paper.
  • Most of the questions were asked from Geotech and Environment section.
  • An increase in the number of questions from the Environment section over the years has been observed.

Others topics that were asked are-

  • Building Material
  • Hydrology
  • Surveying
  • Transportation
  • Fluid Mechanics
  • RCC
  • Steel Structure

February 9, 2020 – Afternoon Session (Civil Engineering)

  • According to students who wrote the exam, this Civil Engineering paper was of moderate difficulty.
  • More questions were numerical types.
  • The General aptitude and Engineering Mathematics sections were relatively easy.

Most of the topics that were present in the paper were:

  • Strength of Material
  • Geotechnical
  • Structural Analysis
  • Transportation
  • H&I
  • FM & OCH
  • RCC
  • Environmental

February 2, 2020 – Afternoon Session (Electronics and Communication Engineering)

  • In comparison to the previous year's GATE, ECE paper was easier.
  • The overall difficulty level as felt by students who gave the exam was easy-moderate.
  • Most of the questions were based on the Communications and Analog Circuits subjects. Signals and Systems had the lowest weightage i.e 6 marks of the total marks allotted for the test.
  • There were a total of 23 NAT questions in the paper, out of which 11 questions carried 1 mark each. The other 12 questions carried 2 marks each.
  • Moreover, among all the questions, the General Aptitude and Engineering Mathematics sections were the high scoring sections as they were of moderate difficulty.
Subjects Questions Total Marks
General Aptitude 10 15
Engineering Mathematics 7 10
Signals and Systems 4 6
Electromagnetics 6 9
Communications 7 11
Analog Circuits 8 13
Digital Circuits 6 9
Networks 5 7
EDC 6 10
Control Systems 6 10


GATE 2021 Helpline

Monday to Friday (except holidays) : 10:00AM to 6:00PM

Chairperson, GATE

Indian Institute of Technology, Bombay

Pawai, Mumbai - 400 076

Phone No.: 022-25767068, 022-25767022

Email ID: [email protected]

Frequently Asked Questions

There is no limit for the number of attempts or the age limit of a person to apply for the GATE exam.

Yes, there is. You can simply log in to the GOAPS website and check for the status of your application form. If the application fee payment is successful, your application form will be accepted.

No, once you have completed the application process up to the PDF step, there is no provision to correct the information. This is why it is necessary that you provide the correct information from the beginning of the application process and be careful of what you will be entering and not make any spelling mistakes.

It is easy, just login with the GOAPS enrollment ID and password and you will be able to download and print out the application form.

Aadhar Card, Driving License, Passport, PAN Card, Voter ID for Indian Candidates. For Foreign Candidates it should be a valid Passport, Government issued ID, College ID, Employment  ID.

A letter from the head of department of the course/institution you are studying in would suffice.

You need to login to the GOAPS website again and check the status of the application fees. If it is made, you can continue with the process of printing the application form. In case of payment being deducted from your account and not recognised by GOAPS, then money will be credited to your account in a week or more after the closure of the application process. You may initiate fresh payment for the application without waiting for the money to be credited in your account. This will ensure that your application submission will be on time.

A foreign candidate should have completed or be in the final year of their Bachelor’s Degree (duration must be at least 4 years) in Engineering/Technology. (OR) Candidates should have completed or be in the final year of their Post Graduate (Master's) Degree (duration must be at least 2 years) in any of the relevant subjects in science. The application fee ranges between USD 50 to USD 120 depending on which country the candidate is from. There is no age limit for foreign candidates as well.

You can find it on Page 39 of the Brochure. Each subject is divided into core topics and special topics.

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