Well below I have given you the course/syllabus of the CDAC entrance exam so you can have a look

Syllabus of C-DAC Exam --

Computing Fundamentals
Evolution of Computers
Data Communications and Computer Networking
Computer Organisation
Flowcharts
Numerica Systems
Binary Arithmetic
Boolean Algebra abd Logic Circuits
Computer Generations
Operating System
File Organisation
Primary and Secondary Storage
Input and Output Devices
Fundamentals Of Programming
Algorithms
Arrays - single and multidimensional
File Orgranisations

C Programming
Introductory Concepts
Operator and Expressions
Data Input and Output
Functions
Arrays
Pointers
Structures and Unions
Operator and Expressions
Trees
Stack
Queues
C Fundamentals
Statements (control, conditional, looping)
Linked Lists

Object Oriented Programming
Objects
Inheritance
Classes
Abstract Classes
Polymorphism
Reusability