C-Programming

• C in Depth by S.K. Srivastava
• The C Programming Language by Kernighan & Ritchie

C: What, Why and How?

Data Structures and Algorithm

• Fundamentals of Data Structures in C by Sahani
• Introduction to Algorithm by Cormen

Why study DS and Algorithms?

Database Management Systems

• Fundamentals of Database Systems by Navathe
• Database Management Systems by Raghu Ram Krishnan

Applied overview

Engineering and Discrete Mathematics

• Linear Algebra and Its Applications by Gilbert Strang [Linear Algebra]
• A First Course In Probability by Sheldon Ross [Probability]
• Discrete Mathematics and Its Applications by Kenneth Rosen [Combinatorics, Graph Theory, Set Theory, Propositional, And Predicate Logic]
• Calculus Made Easy by Silvanus Thompson [ Calculus]
• Problems in Calculus in one variable by IA Maron [Calculus]
• Discrete Mathematical Structures with Applications to Computer Science by Jean-Paul Tremblay, R Manohar [Group Theory]

Linear Algebra: Why and how?

Digital Logic Design

• Digital Design by Morris Mano
• Modern Digital Electronics by R.P. Jain

Why study Digital Logic Circuits and Design?

Theory of Computation & Compiler Design

• An Introduction to Formal Languages and Automata by Peter Linz
• Introduction to the Theory of Computation by Michael Sipser
• Compilers Principles, Techniques, and Tools by Ullman

Why Study Theory of Computation (TOC)?

Computer Organization

• Computer Organization and Design by David Patterson
• Computer System Architecture by Morris Mano
• Computer Organization by William Stallings

Why study COA?

Operating Systems

• Operating Systems: Internals and Design Principles by William Stallings
• Operating System Concepts by Galvin

OS: what does it do?

Computer Networks

• Computer Networks by Andrew S. Tanenbaum
• Introduction to Data communications and networking by Behrouz A. Forouzan

Computer Networks: Why learn it?

General Aptitude and English

• Quantitative Aptitude by R.S. Aggarwal
• Verbal and Non Verbal Reasoning by R.S. Aggarwal
• Logical Reasoning by R.S. Aggarwal
• General English by R.S. Aggarwal