GATE CSE Syllabus 2026: Complete Topic-Wise Breakdown
The GATE 2026 Computer Science and Information Technology (CS) paper covers ten sections. Engineering Mathematics and General Aptitude together account for roughly 28 marks, and the remaining 72 marks are distributed across eight core computer science subjects. Nothing outside this list is examinable, so the syllabus is the single most useful document in your preparation.
Study guide
Section 1 is Engineering Mathematics: discrete mathematics (propositional and first order logic, sets, relations, functions, partial orders, lattices, groups, graph theory, combinatorics, recurrence relations, generating functions), linear algebra (matrices, determinants, system of linear equations, eigenvalues and eigenvectors, LU decomposition), calculus (limits, continuity, differentiability, maxima and minima, mean value theorem, integration), and probability (random variables, uniform, normal, exponential, Poisson and binomial distributions, mean, median, mode, standard deviation, conditional probability, Bayes theorem).
Section 2 Digital Logic covers boolean algebra, combinational and sequential circuits, minimisation, number representations and computer arithmetic in fixed and floating point. Section 3 Computer Organization and Architecture covers machine instructions and addressing modes, ALU, data path and control unit, instruction pipelining and hazards, memory hierarchy including cache mapping and main memory organisation, and I/O interfacing with DMA.
Section 4 Programming and Data Structures covers programming in C, recursion, arrays, stacks, queues, linked lists, trees, binary search trees, binary heaps and graphs. Section 5 Algorithms covers searching, sorting, hashing, asymptotic worst case time and space complexity, algorithm design techniques including greedy, dynamic programming and divide and conquer, graph traversals, minimum spanning trees and shortest paths.
Section 6 Theory of Computation covers regular expressions and finite automata, context free grammars and push down automata, regular and context free languages, pumping lemma, Turing machines and undecidability. Section 7 Compiler Design covers lexical analysis, parsing, syntax directed translation, runtime environments, intermediate code generation, local optimisation and data flow analyses including constant propagation, liveness analysis and common subexpression elimination.
Section 8 Operating System covers system calls, processes, threads, inter process communication, concurrency and synchronisation, deadlock, CPU and I/O scheduling, memory management and virtual memory, and file systems. Section 9 Databases covers the ER model, relational model with relational algebra and tuple calculus, SQL, integrity constraints, normal forms, file organisation and indexing including B and B+ trees, and transactions with concurrency control. Section 10 Computer Networks covers the layering concept, packet switching, data link layer with framing and error detection, medium access control and Ethernet bridging, routing protocols, IPv4 and IPv6 addressing, TCP and UDP, congestion control, DNS, SMTP, HTTP, FTP and DHCP, and basic network security.
Frequently asked questions
Has the GATE 2026 CSE syllabus changed from previous years?
The GATE CS syllabus has been stable for several cycles. The ten sections and their topics remain the same, so notes and previous year papers from earlier years are fully usable. Always cross-check against the official brochure published by the organising IIT before you begin, because small topic clarifications are occasionally added.
Which subjects carry the highest marks in GATE CSE?
Based on previous year analysis, the highest weightage typically goes to Engineering Mathematics plus General Aptitude (around 28 marks combined), followed by Algorithms and Data Structures, Operating Systems, Computer Networks, Databases and Theory of Computation, each commonly in the 7 to 11 mark range. Digital Logic and Compiler Design usually carry less, around 4 to 7 marks each.
In what order should I study the GATE CSE syllabus?
A dependency-respecting order works best: Digital Logic, then Computer Organization and Architecture, then Programming and Data Structures, then Algorithms, then Theory of Computation, then Compiler Design, then Operating Systems, then Databases, then Computer Networks. Engineering Mathematics and Aptitude should run in parallel throughout rather than being left to the end.
How many questions are asked and what is the marking scheme?
The paper has 65 questions for 100 marks in 3 hours. Question types are MCQ, MSQ and NAT. MCQs carry negative marking of one third of the marks for a 1 mark question and two thirds for a 2 mark question. MSQ and NAT questions carry no negative marking, so attempt all of them.
Is General Aptitude part of the CSE syllabus?
Yes. General Aptitude is a compulsory section worth 15 marks in every GATE paper, covering verbal aptitude, quantitative aptitude, analytical aptitude and spatial aptitude. It is the highest return per hour section in the paper and should never be skipped.
Can I cover the full GATE CSE syllabus in 6 months?
Yes, if you are a final year student already familiar with most subjects from your degree. A workable split is four months for first-pass coverage with notes, one month for previous year questions subject by subject, and one month for full-length mock tests and revision. Starting from zero in six months is possible but very demanding.
Do I need to study every topic in the syllabus?
Strategically, no. Some topics appear almost every year while others have not been asked in a decade. Use subject-wise weightage and previous year question analysis to decide depth, but do at least one pass over every topic so you are never blank on a question.
Where can I download the GATE CSE syllabus PDF and notes?
The official syllabus PDF is published on the GATE website by the organising institute each year. For study material, AcademicArk hosts free subject-wise notes, previous year papers and important question sets for all ten CS sections, contributed and verified by students.