GATE Syllabus for CSE (Computer Science & Information Technology)

Every year, GATE Syllabus remains almost similar to the previous same, merely there is a rare chance that GATE Syllabus gets changed.

Students who would be writing the GATE exam must refer the GATE CS and IT syllabus defined by IIT Bombay to start with GATE Preparation as the questions are formulated as per the official GATE syllabus.

Understanding GATE syllabus prior starting GATE preparation will help the candidates effectively plan the preparation strategy and score better marks. GATE CS and IT exam paper consist of questions from aptitude and the core subjects (CS and IT).

Check the detailed information about topics from GATE CSE Paper here,

Verbal Ability:

Grammar, Vocabulary, Coding-Decoding & Series, Directions, Blood Relations, Arrangements, Syllogism, Inference & Assumptions, Clocks and Puzzles.

Numerical Ability:

Fundamentals, Equations, Percentage, Averages, Ratio & Propotions, Mixture and Alligations, Data Interpretation & Data Suffiency, Time, Speed & Distance, Time & Work, Set Theory & Venn Diagrams, Progression, Functions & Graphs, Logarthims, Permutations and Combinations, Probability, Geometry & Mensuration.

Discrete Mathematics:

Propositional and first order logic. Sets, relations, functions, partial orders and lattices. Groups. Graphs: connectivity, matching, coloring. Combinatorics: counting, recurrence relations, generating functions.

Linear Algebra:

Matrices, determinants, system of linear equations, eigenvalues and eigenvectors, LU decomposition.


Limits, continuity and differentiability. Maxima and minima. Mean value theorem. Integration.


Random variables. Uniform, normal, exponential, poisson and binomial distributions. Mean, median, mode and standard deviation. Conditional probability and Bayes theorem.

Digital Logic:


Boolean algebra. Combinational and sequential circuits. Minimization. Number representations and computer arithmetic (fixed and floating point).

Computer Organization and Architecture:

Machine instructions and addressing modes. ALU, data?path and control unit. Instruction pipelining. Memory hierarchy: cache, main memory and secondary storage; I/O interface (interrupt and DMA mode).

Programming and Data Structures:

Programming in C. Recursion. Arrays, stacks, queues, linked lists, trees, binary search trees, binary heaps, graphs.


Searching, sorting, hashing. Asymptotic worst case time and space complexity. Algorithm design techniques: greedy, dynamic programming and divide?and?conquer. Graph search, minimum spanning trees, shortest paths.

Theory of Computation:

Regular expressions and finite automata. Context-free grammars and push-down automata. Regular and contex-free languages, pumping lemma. Turing machines and undecidability.

Compiler Design:

Lexical analysis, parsing, syntax-directed translation. Runtime environments. Intermediate code generation.

Operating System:

Processes, threads, inter?process communication, concurrency and synchronization. Deadlock. CPU scheduling. Memory management and virtual memory. File systems.


ER?model. Relational model: relational algebra, tuple calculus, SQL. Integrity constraints,
normal forms. File organization, indexing (e.g., B and B+ trees). Transactions and concurrency control.

Computer Networks:

Concept of layering. LAN technologies (Ethernet). Flow and error control techniques,
switching. IPv4/IPv6, routers and routing algorithms (distance vector, link state). TCP/UDP and sockets, congestion control. Application layer protocols (DNS, SMTP, POP, FTP, HTTP). Basics of Wi-Fi. Network security: authentication, basics of public key and private key cryptography, digital signatures and certificates, firewalls.

GATE Subject-wise Weightage Analysis for CSE

Understanding GATE syllabus with Subject wise weightage analysis will help the candidates put hours for preparation according to the high scoring subjects.

GATE paper section for CS & IT exam is divided into 3 sections and GATE marks are distributed accordingly between Core Subject, Engineering Mathematics and General Aptitude.

Check Subject-wise weightage for GATE CS & IT Paper:

SUBJECTS GATE 2012 GATE 2013 GATE 2014 GATE 2015 GATE 2016 GATE 2017 GATE 2018 GATE 2019 GATE 2020
Engineering Mathematics* 18% 13% 23% 19% 13.75% 8% 7% 6% 5%
Discrete Mathematics & Graph Theory 10% 9% 12.7% 11% 3.5% 7% 12% 5% 10%
Design & Analysis Algorithms 8% 8% 8% 7.5% 10.75% 5.5% 7% 7% 6%
Programming & Data Structure 19% 18% 13% 18% 10.75% 14.5% 10% 12% 12%
Digital Logic 4% 3% 5% 7% 5% 5% 4% 9% 4%
Computer Organization* 6% 11% 8% 5% 7% 9% 11% 3% 11%
Theory Of Computation 5% 8% 6% 6% 9.25% 9.5% 7% 8% 9%
Compiler design 4% 3% 3% 2% 3.5% 4% 6% 6% 4%
Operating Systems* 9% 12% 7% 8% 16.5% 10% 10% 10% 10%
DBMS* 11% 7% 8% 5% 4.75% 6% 4% 8% 8%
Computer Networks 9% 7% 9% 8% 9% 6.5% 7% 10%6%
General Aptitude* 15% 15% 15% 15% 15% 15% 15% 15% 15%
* Important Subjects

GATE Qualifying Cut off Marks for Computer Science (CSE & IT)

GATE Qualifying Cut Off is the minimum marks that the candidates have to score in order to qualify GATE examination. GATE qualifying cutoff is released by the conducting institute i.e. IIT Bombay for GATE 2021 exam along with the declaration of GATE results.

Till the time of GATE 2021 cutoff, students can find the GATE previous year cutoff and prepare for GATE exam.

Note: Bookmark this page so that you can track the topic that you have already covered or need to cover while preparing for the GATE exam. Sometimes going through this GATE CSE syllabus can remind you of the topic that you need to focus on.

However, there is no marks weightage to any particular section in the GATE 2021 CSE Syllabus, so all the sections of the syllabus are important.

  2020 2019 2018 2017
CS 28.5 25.6 19.0 29.5 26.6 19.7 25.00 22.50 16.60 25.00 22.50 16.60

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