Below are the recommended books for your preparation

Engineering Mathematics

Discrete Mathematics and Its Applications by Kenneth Rosen

Higher Engineering mathematics by B.S. Grewal

Advanced Engineering Mathematics by Erwin Kreyszig

Digital Logic

Digital Design by Morris Mano

Digital Electronics by S. Salivahanan & S. Arivazhagan

Computer Organization and Architecture

Computer Architecture – A Quantitative Approach by Hennessy and Patterson

Computer Organization and Embedded systems by Carl Hamacher

Programming and Data Structures

The C Programming language by Dennis Richie

Classic Data Structures by Debasis Samanta

Algorithms

Introduction to Algorithms by Cormen
Data Structures & Algorithms by R.S. Salaria

Theory of Computation

An Introduction to Formal Languages and Automata by Peter Linz

NPTEL lectures by Kamala Krithivasan

Compiler Design

Compilers: Principles, Techniques and Tools by Aho & Ullman

Compiler Design in C by Allen I Holub

Operating System

Operating System Concepts by Galvin

Modern Operating System by Andrew Tanenbaum

Operating Systems by Stallings

Databases

Database System Concepts by Henry. F. Korth

Normalization and indexing by Shamkant B. Navathe

Computer Networks

Computer Networking: A Top-Down Approach

Data Communications and Networking by Kurose & Ross and Behrouz A. Forouzan

Computer Networks by Peterson & Davie

Good Luck!!

Here are some of the books name you can prefer for CSE

Engineering Mathematics- by Kenneth Rosen

Digital Logic- by Morris Mano

Computer Organization and Architecture- by Hennessy and Patterson

Programming and Data Structures- C Programming language by Dennis Richie

Algorithms- by R.S. Salaria

Theory of Computation- Peter Linz

Compiler Design-Aho & Ullman

Operating System- Andrew Tanenbaum

Databases- by Henry. F. Korth

Computer Networks- A Top-Down Approach

For further in detail of the topic you can go through with given below link.

GATE CSE books

For the syllabus of CSE you can go through with given below link.

GATE Syllabus

Good Luck!