In computer science, a data structure is a data organization, management, and storage format that is usually chosen for efficient access to data. More precisely, a data structure is a collection of data values, the relationships among them, and the functions or operations that can be applied to the data, i.e., it is an algebraic structure about data. Data Structures are a specialized means of organizing and storing data in computers in such a way that we can perform operations on the stored data more efficiently. Data structures have a wide and diverse scope of usage across the fields of Computer Science and Software Engineering This course is based on the learning the basics of Data structures in C language. it introduces some basic data structures (like arrays, linked lists, stacks, queues etc) . in theoretical part we will learn about theory part and algorithms of data structures and here we will learn sorting and searching techniques also along with concepts about stacks ,queues and linked lists . in programming part we will see their programs written in c language . anyone who want to improve their programming skills with a prior knowledge in c language can enroll for this course as in outside market there is a huge demand for data structures because they have applications in many fields