Here you can check the Syllabus with given below:

Section1: Engineering Mathematics

• Discrete Mathematics

• Linear Algebra

• Calculus

• Probability

Section 2: Digital Logic

Section 3: Computer Organization and Architecture

Section 4: Programming and Data Structures

Section 5: Algorithms

Section 6: Theory of Computation

Section 7: Compiler Design

Section 8: Operating System

Section 9: Databases

Section 10: Computer Networks

For further you can go through with given below link.

GATE CSE Syllabus