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Designed as a textbook for undergraduate students of Mathematics, Physics and Engineering.

यह पुस्तक “पर्यावरण एवं पारिस्थितिकी” संघ तथा राज्य लोक सेवा आयोग की प्रारंभिक एवं मुख्य परीक्षाओं की तैयारी करने वाले अभ्यर्थियों के लिए एक अत्यंत उपयोगी संसाधन है। यह पुस्तक पिछले 14 वर्षों के प्रारंभिक प्रश्नों का विश्लेषण करती है और नवीनतम करंट अफेयर्स से संबंधित अद्यतन तथ्यों को भी समाहित करती है (2024-25)। इसमें 500+ डायग्राम्स, माइंडमैप्स और फ्लोचार्ट्स शामिल हैं जो जटिल अवधारणाओं को सरल व स्पष्ट रूप में समझने में मदद करते हैं, जिससे अभ्यर्थी कम समय में अधिक प्रभावी अध्ययन कर सकें।

प्रस्तुत पुस्तक को उत्तर प्रदेश के सामान्य ज्ञान पर राज्य सिविल सेवा परीक्षा के साथ साथ राज्य स्तरीय सभी प्रतियोगी परीक्षाओं को ध्यान में रखते हुए तैयार किया गया है। उत्तर प्रदेश के इतिहासए भूगोलए अर्थव्यवस्थाए संविधानए विज्ञान प्रौद्योगिकी के साथ विभिन्न सामाजिकए सांस्कृतिक एवं समसामयिक विषयों को समाहित किया गया है। सम्पूर्ण विषयवस्तु को तथ्यात्मकए सूचनात्मक आँकड़ों के साथ अद्यतन विषयवस्तु को समाहित करने का प्रयास किया गया है। हाल के वर्षों में प्रदेश की प्रशासनिक सेवा के साथ विभिन्न प्रतियोगी परीक्षाओं में पूछे गए प्रश्नों के साथ अध्याय के अन्त में अभ्यास प्रश्न भी समाहित किए गए हैंए जो विद्यार्थियों के लिए अत्यन्त लाभकारी सिद्ध होंगे।

यह उत्तर प्रदेश सब-इंस्पेक्टर (UPSI) भर्ती परीक्षा 2025–26 पुस्तक नवीनतम परीक्षा पैटर्न और आधिकारिक पाठ्यक्रम पर आधारित एक उत्कृष्ट अध्ययन सामग्री है। इसमें पिछले वर्षों के तथा नवीनतम 25 सॉल्व्ड पेपर्स को बेहतरीन व्याख्या के साथ शामिल किया गया है, जिससे अभ्यर्थी परीक्षा के स्तर, प्रश्नों की प्रकृति एवं समय प्रबंधन को बेहतर समझ सकें। यह पुस्तक अवधारणाओं को मजबूत करने, सटीकता बढ़ाने और निरंतर अभ्यास के माध्यम से लिखित परीक्षा में सफलता प्राप्त करने के लिए अत्यंत उपयोगी सिद्ध होगी।

The book has been designed according to the new AICTE syllabus and will cater to the needs of engineering students across all branches. The book provides the basis which is necessary for dealing with different types of physicochemical phenomena. Great care has been taken to explain the physical meaning of mathematical formulae, when and where they are required, followed by logical development and discussion of experimental behavior of systems. Every chapter has a set of solved problems and exercises. The idea is to instill sound understanding of the fundamental principles and applications of the subject. The author is known for explaining the concepts of Engineering Chemistry with full clarity, leaving no ambiguity in the minds of the readers. Although the book is primarily intended for BTech/BE students, it will also cater to the requirements of those pursuing BSc and MSc, including those of other disciplines like materials science and environmental science.

This textbook caters to the language specific needs of the students pursuing technical and professional courses at UG level. The book encourages a sound enquiry-based approach among the students. It will help them understand the nuances of the language per se and enable them to apply the concepts in real-life situations. The book prescribes a thorough grounding in listening, speaking, reading and writing skills in English language.

This much‐awaited new edition of a pioneering textbook written by an expert academic and policy maker is released after a gap of eight years. All through these years the book has been in demand across many university departments and b‐schools.
India has seen landmark changes in its financial system in recent times, which has transformed the economic scenario of the country in a big way. This has necessitated a thorough revision of this textbook. This edition incorporates these changes in all their complexities, yet retains the original focus on the analysis of the principles and practices in the money market, capital market and foreign exchange market of India

An effective and efficient Management Information System is essential to compete and emerge successful in a global competitive environment. The 4th edition of this book has been updated to meet the new requirements of students, professors and practitioners. To update and enhance the coverage of the book, many chapters have been restructured, and some new content/chapters have been added. In addition, to have better engagement and learning outcomes for the readers, certain new pedagogical features have been added.

Managerial Economics has stood the test of time for the last 45 years because of the quality of presentation of its text. It has become students’ favourite as it provides the latest theories, thoughts and applications on the subject with timely revisions to stay up-to-date all the time Since its first edition, it has provided complete, comprehensive and authentic text on micro and macro aspects of managerial economics. It has now been revised thoroughly by addressing the real-world complexities of applying these theories to managerial decisions.

Modern Political Theory critically examines the contemporary state of political theory, making an assessment of the achievement and limitations of the ‘Behavioural Revolution’ in its totality, and reviews objectively the major paradigms and conceptual frameworks adopted by the discipline. The salient features of the contending conceptual models elaborated by leading scholars, operating from separate locations and disparate premises, have been highlighted and intellectual inter-linkage in their works traced.

Operations Research is the discipline of applying advanced analytical methods to help make better decisions. It helps the management to achieve its goals by using scientific techniques, making the study and understanding of operations research even more important in the present-day scenario. This book has been written with the objective of providing students with a comprehensive textbook on the subject. It follows a simple algorithmic approach to explain each concept, often giving different steps. This approach stems from the author’s experience in teaching undergraduate and postgraduate students of Madras University and Anna University, Chennai, over many years.

The primary aim of the book is to provide students of management with a firm foundation for understanding all the main components of sales and distribution management. The book has a practical orientation, as it written by author who has worked as practicing manager mostly in sales and distribution. The book, therefore, is a useful resource to practicing professionals in industry, training and consultancy.

Due to its simple language, straightforward approach to explaining concepts, and the right kind of examples, this book has established itself as student’s companion in almost all leading universities in India. With its authentic text and a large number of questions taken from various university examinations, coupled with regular revisions, the book has served well for more than 20 years now.

For the last 40 years this book has served well the students of Botany, Agriculture and Forestry for their regular courses like BSc. (General and Hons) and Msc., as well as competitive examinations. It has stood the test of time due to the authors’ zeal to update it regularly with inputs from latest developments in the field. It explains all the important topics such as development and structure of male and female gametophytes, pollination, fertilization, sexual incompatibility, development of endosperm and embryo, polyembryony, apomixis and seed development. It also describes embryology in relation to taxonomy and experimental and applied embryology.

सिविल सेवा परीक्षा के नये पाठ्यक्रम में सामान्य अध्ययन के अंतर्गत पहली बार विश्व इतिहास, विशेष रूप से आधुनिक विश्व इतिहास, को समाहित किया गया है। वैकल्पिक विषय इतिहास में पहले से ही विश्व इतिहास का पाठ्यक्रम शामिल है। विश्व इतिहास की इस महत्त्वपूर्ण भूमिका को देखते हुए इस पुस्तक की रचना की गई है। इस पुस्तक की रचना करते समय विभिन्न विश्वविद्यालयों से संबंधित पाठ्यक्रमों को भी ध्यान में रखा गया है। विश्व इतिहास का अध्ययन आरंभ से ही भारतीयों के लिए विशेष अभिरुचि का विषय रहा है। इसलिए इसकी रचना उन पाठकों को भी ध्यान में रखकर की गई है, जो आधुनिक विश्व इतिहास के अध्ययन में अभिरुचि रखते हैं।