The purpose of this book, Production Technology, is to provide a comprehensive knowledge and insight into various aspects of engineering materials, their heat and fabrication, manufacturing processes, machining and tooling techniques, non-conventional methods of machining, the cutting tools, tooling equipment and machine tools, dies, jigs and fixtures, presses etc. As computers are finding more and more usage in factories, special attention has been given for their full coverage. Other chapters have been especially added in view of the latest trends and developments taking place in the field of production. Modern practices and recent trends on automation have been covered in each chapter. A good number of important problems collected from several universities have been solved and given at the end of each chapter.

Beginning with a discussion on frameworks of writing history, the volume sheds light on the origins and growth of civilizations, empires, and religions. It covers the geographical, ecological, and linguistic backgrounds, and looks at specific cultures of the Neolithic, Chalcolithic, and Vedic periods, as well as the Harappan civilization. The author discussed the rise of Jainism and Buddhism, Magadha, and the beginning of territorial states. The period of Mauryas, Central Asian countries, Satavahanas, Guptas, and Harshvardhana are also analysed. He highlights important phenomena such as the varna system, urbanization, commerce and trade, developments in science and philosophy, and cultural legacy. He also examines the process of transition from ancient to medieval India and addresses topical issues such as the origin of the Aryan culture. This engaging and lucid text, by one of the best-known scholars of ancient India, will be indispensable for students and teachers of ancient Indian history. This book is the Hindi translation of the English edition.

Engineering Thermodynamics is a comprehensive text which presents the broad spectrum of the principles of thermodynamics while encapsulating the theoretical and practical aspects of the field. The book provides clear explanation of basic principles for better understanding of the subject. Additionally, the book includes numerous laws, theorems, formulae, tables, charts and equations for learning apart from extensive references for more-in-depth information. The revised edition of the book has been completely updated covering the complete syllabi of most universities and is aimed to be useful to both the students and faculty.

Irrigation Engineering and Hydraulic Structures comprehensively deals with all aspects of Irrigation in India, soil moisture and different types of irrigation systems including but not limited to Sprinkler, Tubewell, Canal and Micro-Irrigation. The book also focuses on Engineering Hydrology, Dams, Water Power Engineering as well as Irrigation Water Management. Special care has been taken to highlight the principles, practices and design procedures that have been widely recommended as well as suggest improvements in the application of existing methods and adoption of latest techniques used in other parts of the world.

It has been gratifying to find the earlier editions of the book read and used in so many parts of the country.The new edition oews much to the useful comments and suggestions of the teachers,students and the practising engineers to whom the express their grateful thanks.A new chapter on Prestressed Concrete has been added to the new edition.In particular,the chapter disscusses various aspects of prestressing,like types of prestressing,various methods of prestressing,materials used,losses in prestress,layout of cable profiles,analysis and methods of design of various elements and the detailed analysis and design of end Block.