# General Science and Technology Cracking IAS General Studies Prelims by Disha for UPSC Civil Services 5th Edition > UPSC science and technology guide with PYQs, MCQs and current tech concepts. ## Details - **Author:** Disha Experts - **Publisher:** Disha Publication - **Language:** English - **Edition:** 5th Edition - **Year:** 2024 - **Pages:** 610 - **ISBN:** 9789355649867 - **File Size:** 3.3 MB - **Difficulty:** intermediate - **Price:** Free - **URL:** https://www.allcompetitionclasses.co.in/books/general-science-tech-cracking-ias-prelims-disha ## Exam Relevance - UPSC Civil Services Examination - State PSC Exams - RAS - UPPSC - BPSC - MPPSC - HPSC - UKPSC - SSC CGL - SSC CHSL - CDS - CAPF - NDA - Railway Exams - Government Recruitment Exams ## Subjects & Topics - General Science - Science and Technology - Physics - Chemistry - Biology - Environmental Science - Space Technology - Biotechnology - Competitive Exam Prep - UPSC Preparation - Science and Technology ## Tags #general science and technology upsc pdf #disha science technology book pdf #science and tech for upsc prelims #upsc science mcq pdf #biology for upsc prelims #technology current affairs upsc #physics chemistry biology upsc #disha publication science book #science and technology notes pdf #upsc prelims science questions #isro and space technology upsc #biotechnology for upsc #environment and science upsc #science current affairs prelims #upsc science english book #state pcs science book #artificial intelligence upsc notes #general science objective questions #disha ias science technology 5th edition #science and tech preparation upsc ## Full Description Science and Technology has become one of the most unpredictable yet scoring areas in UPSC prelims. Questions are no longer limited to school-level facts. UPSC now mixes static science concepts with current technological developments, space missions, biotechnology, health research, environment, and government initiatives. Many students feel lost because they either study NCERTs only or depend entirely on current affairs magazines. This book helps bridge that gap. General Science and Technology Cracking IAS General Studies Prelims by Disha is designed specifically for UPSC prelims aspirants who want science preparation in an exam-oriented format. Instead of going too deep into technical theory, the book explains concepts from the perspective of how UPSC asks questions. The focus remains on conceptual understanding, current relevance, and objective practice. The 5th edition has been updated according to recent UPSC trends where science questions increasingly revolve around technology applications, biotechnology, space research, health science, environmental science, and emerging innovations. The book combines theory, current developments, diagrams, MCQs, and previous year questions in a structured way so students can revise efficiently. The General Science section begins with Physics fundamentals including motion, force, work, power, energy, heat, light, sound, electricity, magnetism, waves, optics, semiconductors, and modern physics basics. Instead of engineering-level detail, the explanations remain practical and linked to real-world applications. This is useful because UPSC usually tests conceptual clarity rather than numerical problem-solving. Chemistry chapters cover matter, atomic structure, elements, compounds, acids and bases, metals and non-metals, periodic classification, chemical reactions, fuels, polymers, environmental chemistry, and industrial chemistry applications. Questions connected to pollution, greenhouse gases, ozone depletion, and chemical applications in daily life are especially relevant for prelims. Biology is one of the strongest parts of the book because UPSC frequently asks biology and health-related questions. Topics include cell structure, human body systems, nutrition, diseases, immunity, genetics, plant physiology, biotechnology, microbiology, vaccines, and public health issues. Modern themes such as DNA technology, genetic engineering, stem cells, cloning, and biotechnology applications are also covered because these areas appear regularly in prelims. Environmental Science and Ecology sections overlap with science preparation and are treated carefully in the book. Topics include ecosystems, biodiversity, food chains, environmental pollution, climate change, wildlife conservation, biosphere reserves, national parks, renewable energy, sustainable development, and environmental conventions. The Technology section is particularly important for modern UPSC preparation. Chapters include Information Technology, Artificial Intelligence, Robotics, Nanotechnology, Blockchain, Cyber Security, Quantum Technology, Internet of Things, and Digital India initiatives. Many UPSC aspirants struggle to study technology because news articles often assume prior technical knowledge. This book simplifies these concepts for non-technical students. Space Science and Defence Technology are also included. Topics cover ISRO missions, satellite systems, launch vehicles, communication technology, GPS systems, remote sensing, missile technology, nuclear technology, and India’s scientific achievements. Recent space-related current affairs have become highly relevant in prelims, so these chapters help students connect static concepts with ongoing developments. Agricultural Science and Food Technology chapters discuss GM crops, fertilizers, irrigation technology, food preservation, agricultural biotechnology, soil science basics, and sustainable farming concepts. UPSC often links agriculture with science and environment, making these sections useful for integrated preparation. Health and Medical Science topics include vaccines, viruses, public health programs, epidemic diseases, immunity systems, nutrition, and medical technologies. After recent global health developments, UPSC has shown greater interest in science questions connected to healthcare systems and biotechnology. The book also contains chapter-wise MCQs and previous year UPSC prelims questions. This is one of the most useful features because science preparation without question practice often becomes ineffective. UPSC science questions usually test application and conceptual understanding rather than memorized facts. Solving PYQs helps students understand that pattern. Diagrams, tables, scientific flowcharts, and fact summaries are used throughout the book to make revision easier. Many aspirants fear science because they assume it requires a technical background, but the explanations are written in a simplified style suitable for general studies preparation. This book is mainly intended for UPSC Civil Services Examination aspirants preparing for General Studies Paper 1 prelims. Beginners from humanities backgrounds especially benefit because the explanations start from fundamentals and gradually move toward exam-oriented understanding. Intermediate-level students can use the book mainly for revision, MCQs, and technology updates. Apart from UPSC, the content is useful for State PSC exams including RAS, UPPSC, BPSC, MPPSC, HPSC, UKPSC, and other state civil services examinations where science and technology questions are asked. It also helps in SSC CGL, SSC CHSL, CDS, CAPF, NDA, Railway exams, and other government recruitment exams containing General Science sections. Students preparing for banking or insurance exams may also find selected sections useful for current technology awareness and general science revision, although the primary focus remains UPSC and civil services preparation. Disha Publication is already a trusted name among competitive exam aspirants in India. Their books for UPSC, SSC, banking, defence, railway, and teaching exams are widely used because they follow actual exam patterns and include practice-oriented preparation. The Cracking IAS series is popular among prelims aspirants because it combines concise theory with objective questions and PYQs. The material in this book has been prepared by Disha Experts, a team of educators and subject specialists who regularly analyze UPSC trends. Their approach usually focuses on making large subjects manageable for revision instead of overwhelming students with purely academic detail. If you study mostly on your phone or tablet, downloading a mobile-friendly PDF version of this book can make revision much easier. Science and technology preparation often requires repeated reading of concepts, diagrams, and current developments. A compressed PDF loads faster, consumes less storage space, and allows students to revise topics during travel, coaching breaks, or mock test sessions. Digital study also helps in quickly searching for specific topics like AI, vaccines, climate change, ISRO missions, or biotechnology. Instead of flipping through hundreds of pages, you can directly jump to the required concept. Another practical advantage is flexible revision planning. Many students prepare static science first and then revise technology separately along with current affairs. PDF format makes such sectional revision smoother and faster. Science and Technology may look difficult initially, especially for non-science background students, but UPSC usually asks conceptual questions rather than deep technical details. Once you start understanding how technology connects with governance, environment, health, agriculture, and economy, the subject becomes much more interesting. If your target is UPSC or State PCS prelims, this book gives a strong foundation for both static science and modern technological developments. Read topics slowly, connect them with current affairs, revise diagrams and scientific terms regularly, and solve previous year questions seriously. That consistent approach matters far more than trying to memorize random facts. Over time, science and technology stops feeling like a separate subject and starts becoming a logical part of general studies preparation. --- - **URL:** https://www.allcompetitionclasses.co.in/books/general-science-tech-cracking-ias-prelims-disha [Download / View Book](https://www.allcompetitionclasses.co.in/books/general-science-tech-cracking-ias-prelims-disha) [Browse All Books](https://www.allcompetitionclasses.co.in/books)