Data and File Structures using C is specially designed to serve as a textbook for undergraduate students of computer engineering at Gujarat Technological University (GTU). Beginning with an introduction to data structures, including data management concepts, the book moves on to present linear data structures such as arrays, stacks, structures, queues and linked lists and their applications. It then treats the non-linear data structures trees and graphs and their applications. Finally, the text discusses hashing and file structures, including collision-resolution techniques and file organization. Interspersed with numerous solved examples, the book balances the theoretical aspects of data structures with their practical implementation.