GATE 2026 CSE Important Topics – High-Weightage Subjects

GATE 2026 CSE Important Topics – High-Weightage Subjects

Shivani PooniaUpdated on 03 Oct 2025, 12:30 PM IST

GATE 2026 CSE Important Topics - In this article we will be looking at the GATE 2026 CSE important topics. The GATE exam is a national level examination conducted once in a year for admission into post graduate programs 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. This article will help you prepare for CSE as we will dive into resources that will help you to ace your GATE 2026 exam.

GATE 2026 CSE Important Topics – High-Weightage Subjects
GATE 2026 CSE Important Topics

Important Topics for GATE 2026 CSE

You should prioritize the high weightage topics for CSE in GATE exam 2026. Our experts have analysed the last 5 years GATE CSE question papers and prepared the table below. This table has the assigned weightage of each chapter and the number of questions asked in the particular year column. To prepare and get better marks, prioritze the chapters with a higher weightage and prepare accordingly.

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%

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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 for this subject: CSE I and CSE II making it a total of 130 questions overall. This graph will give you a visual representation and understanding of important topics of GATE CSE 2026. Since GATE is a highly competitive exam, it requires strategic study. Candidates must refer to the best books from reputable publishers for their preparation. We have listed down some of the most important topics for GATE 2026 CSE along with their main topics and best books to refer.

Subject

Top Chapter

Main Topics

Recommended Book

Engineering Mathematics (16.40%)

Linear Algebra

Matrices, Eigenvalues & Eigenvectors, Systems of Linear Equations, Vector Spaces

Higher Engineering Mathematics by B.S. Grewal

Aptitude (15.73%)

Linear Algebra


Matrices, Eigenvalues & Eigenvectors, Systems of Linear Equations, Vector Spaces


Higher Engineering Mathematics by B.S. Grewal


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


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 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

GATE Previous Year Question Paper's
Download GATE previous year question papers to understand exam pattern and difficulty level. Practice with these papers to boost your preparation and improve your score.
Check Now


GATE CSE 2026 Preparation Strategy

In order to help you prepare for GATE, we have noted down some suggestions to help you out. GATE is a highly competitive exam and a proper preparation guide is required. Some of the best practices are listed as follows:

1. Understand the GATE question paper pattern.
2. Strictly follow the GATE CSE syllabus.
3. Practice GATE Mock Test once you are done studying a significant part of the exam.
4. Create your own strategic GATE exam timetable. This will help you study in a systematic manner.
5. Practice and analyse the previous years GATE CSE question papers that can help you prepare for the exam and practice. We have listed down the previous years question papers for you:

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Frequently Asked Questions (FAQs)

Q: Which subject carries the highest weightage in GATE 2026 CSE?
A:

Engineering Mathematics holds the highest weightage at 16.40%, followed closely by Aptitude at 15.73%. You can also have a look at the table to strategize and prepare accordingly.

Q: How many sections are there in the GATE CSE paper?
A:

Generally two sections: Aptitude and the rest of the paper (which contains Engineering Maths and CSE topics)

Q: What is the best book for Computer Networks preparation?
A:

Computer Networking: A Top-Down Approach by Kurose and Ross is highly recommended.

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Questions related to GATE

On Question asked by student community

Have a question related to GATE ?

Hello aspirant,

If you missed the correction window for GATE 2026, the portal will not allow changes right now. Usually, IIT opens a correction period only once. Since you need to change your surname, the best option is to contact the GATE organizing institute through their official support email or helpline and explain your issue with valid proof like your Aadhaar or school documents. They sometimes allow corrections in genuine cases, but it depends on their approval. Make sure to keep all documents ready when you contact them.

FOR REFERENCE : https://engineering. careers360.com/articles/gate-application-form-correction

THANK YOU

Hi Aanchal,

Balancing Engineering semester exams with competitive exam preparation can feel confusing but with right and realistic routine makes it very achievable.

Start by dividing your day into two parts: use college hours and afternoons for semester prep and keep early mornings or late evenings for GATE prep.

Make weekly targets instead of daily pressure, revise class notes on the same day.

Use weekends for mock tests, previous year papers and deeper revision.

Try to limit social media, study in 40 to 50 mins focused blocks and take short breaks.

Most importantly stay consistent and give yourself patience.

With consistent timetable and steady effort you can manage both in smooth. All the best Aanchal!

If you are interested in Development Studies and planning to appear for GATE XH C6 (Sociology), then you are already moving in the right direction. Having a backlog does not disqualify you from pursuing higher studies, as long as you clear it before the admission process begins. Since you mentioned that you can clear the backlog before February 2026, it should not affect your eligibility for PG admissions. Most universities require a completed bachelor’s degree with no active backlog at the time of admission.

Your CGPA of 6.9 is acceptable for many institutes, although some top institutes may have higher cutoffs. Your interest in sociology and Development Studies will be helpful because the GATE XH paper tests conceptual understanding. If you prepare consistently and score well in GATE, you can apply to reputed institutes offering Development Studies such as IITs, TISS, JNU, Azim Premji University, and others.

Focus on clearing your remaining backlog and continue your GATE preparation strongly. If you balance both, you can build a good academic profile for admission into Development Studies. All the best.


Hello,

You can change your category in the GATE application by logging into the GOAPS portal during the correction window and using the "Edit GATE Application Form" option to make the change. You will likely need to pay an additional fee for the change and may need to provide a valid category certificate.

I hope it will clear your query!!