GATE Application Date:28 Aug' 25 - 28 Sep' 25
GATE 2026 CSE Important Topics - The GATE exam is a prestigious national level examination conducted once in a year for admission into post graduate programs like ME, Mtech or Ph.D or for recruitment into top public sector undertakings (PSU) all over India. CSE is one of the core subjects and if taken, it opens doors to top class institutes like IIT, IISc and other research labs supported by the government. In this article, we shall dive into the important topics for CSE, GATE exam pattern, study tips and a lot of resources that will help you to ace your GATE 2026 exam. Let’s dive in!
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Now that we have understood the exam pattern, it is time to dive into the main component of this article:GATE 2026 CSE important topics:
This table will give you a brief overview of the last 5 years question paper:
Chapter | 2025 | 2024 | 2023 | 2022 | 2021 | Total (5 Years) | Weightage |
Engineering Mathematics | 16 | 23 | 11 | 12 | 11 | 73 | 16.40% |
Aptitude | 20 | 20 | 10 | 10 | 10 | 70 | 15.73% |
Computer Networks | 10 | 12 | 6 | 9 | 7 | 44 | 9.89% |
Programming and Data Structures | 17 | 11 | 9 | 4 | 3 | 44 | 9.89% |
Computer Organization & Architecture | 13 | 13 | 5 | 6 | 5 | 42 | 9.44% |
Operating System | 10 | 10 | 7 | 7 | 4 | 38 | 8.54% |
Databases | 9 | 12 | 3 | 8 | 7 | 39 | 8.76% |
Theory of Computation | 9 | 9 | 6 | 4 | 4 | 32 | 7.19% |
Digital Logic | 9 | 5 | 4 | 2 | 2 | 22 | 4.94% |
Compiler Design | 9 | 8 | 1 | 2 | 1 | 21 | 4.72% |
Algorithms | 8 | 7 | 3 | 1 | 1 | 20 | 4.49% |
Grand Total | 130 | 130 | 65 | 65 | 55 | 445 | 100.00% |
As seen, engineering mathematics covers the maximum weightage followed by aptitude. Well, these are seen as two different subjects. Coming to core chapters computer networks and programming and data structures both seem to have 9.89% overall weightage. You can also compare it according to the trends followed in the different years. Another point to note is that until 2021 there were only 55 total questions and 2024 onwards there are two papers being conducted: CSE I and CSE II making it a total of 130 questions overall. This graph will give you a visual representation and understanding of the chapters for preparation of GATE CSE 2026.
Now that we have seen the weightage table, lets look into the top chapters and understand the books to refer to. This other table will give you a lot of information and resources to refer to:
Subject | Top Chapter | Main Topics | Recommended Book |
Aptitude (16.40%) | Numerical Ability | Percentages, Ratios, Averages, Time & Work, Speed & Distance, Profit & Loss, Number Series, Simple & Compound Interest | Quantitative Aptitude for Competitive Examinations by R.S. Aggarwal |
Engineering Mathematics (15.73%) | Linear Algebra | Matrices, Eigenvalues & Eigenvectors, Systems of Linear Equations, Vector Spaces | Higher Engineering Mathematics by B.S. Grewal |
Programming & Data Structures (9.89%) | Trees and Graphs | Binary Trees, AVL Trees, Binary Search Trees, Graph Traversals (DFS, BFS), Spanning Trees, Graph Representations | Data Structures and Algorithm Analysis in C by Mark Allen Weiss |
Computer Networks (9.89%) | TCP/IP and OSI Models | OSI Layers, TCP/IP Stack, IP Addressing, Routing Protocols, UDP vs TCP, Application Layer Protocols (HTTP, DNS) | Computer Networking: A Top-Down Approach by James Kurose and Keith Ross |
Computer Organization & Architecture (9.44%) | Memory Hierarchy and Cache | Cache Mapping Techniques, Memory Access Time, Virtual Memory, RAM & ROM, Instruction Cycles, Pipeline Architecture | Computer Organization and Design by David A. Patterson and John L. Hennessy |
Also check: GATE 2026 CSE Syllabus
The GATE 2026 Computer science and information technology paper is conducted to test candidates on their understanding of core concepts of CS, problem solving and coding practices. This paper mainly consists of 3 main sections: Aptitude, Engineering Maths and Computer science. This table below will give you all the information you require for the exam pattern understanding:
Feature | Details |
Exam Mode | Online Computer-Based Test (CBT) |
Duration | 3 Hours (180 Minutes) |
Total Marks | 100 |
Total Questions | 65 |
Sections | GA (15 Marks), Engineering Maths & CSE (85 Marks) |
Question Types | MCQ (Multiple Choice Questions) MSQ (Multiple Select Questions) NAT (Numerical Answer Type) |
Marking Scheme | 1-mark and 2-mark questions Negative marking for MCQs: -1/3 for 1-mark & -2/3 for 2-mark questions No negative marking for NAT & MSQ |
Now that we have looked into the chapters to prioritize and the books to refer to, its time to dive into some resources. Lets look into previous years GATE CSE question papers that can help you prepare for the exam and practice.
Year | Download GATE Previous Year Paper |
2025 | |
2025 | |
2024 | GATE 2024 CS Question Paper and Answer Key PDF (Shift 1 & 2) |
2023 | |
2022 | |
2021 | |
2020 | |
2019 | |
2016 - 2018 |
On Question asked by student community
Hello! If you are preparing for GATE, there are plenty of free resources available online that can boost your preparation. You can easily access e-books, handwritten notes, subject wise PYQs, and test series shared by toppers on different platforms. Along with that, free PDFs and study material are available through various websites and Telegram channels. To make it easier, I will be attaching the link where you can find preparation tips, a study timetable, free study materials, and previous year question papers all in one place.
https://engineering.careers360.com/articles/gate-preparation-timetable
https://engineering.careers360.com/articles/how-to-prepare-for-gate
https://engineering.careers360.com/articles/gate-preparation-material
https://engineering.careers360.com/articles/gate-mock-test
https://engineering.careers360.com/articles/gate-question-papers
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Hello,
You can download GATE Previous Year Question Papers either from the official website of GATE 2026, or from Careers360. Here are the links for both :
Official Website : Download GATE Previous Papers (https://gate2025.iitr.ac.in/download.html)
Careers360 : GATE Question Papers with Solutions
Hope it helps !
To take GATE mock tests, first choose a reliable source like GATE official portal, NPTEL, Made Easy, or ACE Engineering. Sign up or register online to access the full-length tests. Simulate the actual 3-hour exam with proper timing and no distractions. Attempt complete tests to practice time management and exam strategy. After each test, analyze your performance to identify weak areas and revise. Regularly taking 1–2 mocks per week helps improve speed, accuracy, and confidence.
For GATE Life Sciences question banks, you can go for GATE past year's papers to understand the exam style, and you can buy online test series from a coaching site for lots of new practice questions.
you can get question book one from publishers like IFAS or GKP. Also use free online resources like NPTEL and EasyBiologyClass for extra practice and study materials. Good luck!
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