Best Books for Delhi Police, SI & Constable Exams 2025

The Delhi Police recruitment exams are among the most sought-after opportunities for candidates aiming for a secure and respected government job. Every year, lakhs of aspirants apply for posts like Sub-Inspector (SI) and Constable, making the competition extremely tough. With the recruitment being handled through the Staff Selection Commission (SSC) and Delhi Police Department, the exam follows a structured pattern that tests candidates on reasoning ability, quantitative aptitude, general knowledge, current affairs, and language skills. To succeed in 2025, aspirants must carefully select the best books for Delhi Police exams that not only cover the syllabus comprehensively but also provide practice sets and solved question papers to sharpen exam readiness.

The importance of books in exam preparation cannot be overstated. While online resources and mock tests are useful, physical books from reputed publishers remain the backbone of systematic preparation. Books allow structured learning, concept clarity, and repeated revisions, which are necessary to crack highly competitive exams. For the Delhi Police SI exam, candidates need books that focus on advanced reasoning, quantitative aptitude, English comprehension, and general awareness. On the other hand, Delhi Police Constable exam books should emphasize clarity of basics, step-by-step problem solving, and a strong grip on current affairs. Choosing the right material at the start not only saves time but also boosts confidence.

When it comes to reasoning ability, which forms a major part of both SI and Constable exams, aspirants must rely on standard authors who have been trusted for decades. Books like A Modern Approach to Verbal and Non-Verbal Reasoning by R.S. Aggarwal remain the gold standard. They provide detailed explanations of topics such as syllogisms, puzzles, seating arrangements, coding-decoding, and analytical reasoning. For those aiming at SI-level preparation, advanced reasoning guides by Kiran Publications and practice sets by Arihant are also extremely helpful. These books not only offer conceptual clarity but also familiarize candidates with the type of tricky questions often asked in SSC-based police exams.

Quantitative aptitude is another key subject where candidates often struggle. The exam syllabus includes arithmetic topics such as percentages, averages, ratios, time and work, profit and loss, and number systems, as well as advanced areas like algebra, trigonometry, and geometry for SI-level exams. For mastering this subject, Quantitative Aptitude for Competitive Examinations by R.S. Aggarwal remains indispensable. Along with this, Fast Track Objective Arithmetic by Rajesh Verma and Kiran’s chapter-wise solved papers provide excellent support. Candidates preparing for constable-level exams may focus more on basic arithmetic practice, while SI candidates should practice higher-level problem solving through Arihant’s Advanced Maths books.

For the English language section, which is crucial for the SI exam and also appears in the Constable exam, aspirants should build both grammar and comprehension skills. The Objective General English by S.P. Bakshi (Arihant Publication) has been the go-to book for years and continues to be one of the best SI exam preparation books in 2025. It covers grammar rules, vocabulary, idioms, sentence correction, and comprehension passages in a systematic way. For vocabulary building, Word Power Made Easy by Norman Lewis remains unmatched. Constable candidates can focus on basic grammar and comprehension, while SI candidates must aim at mastering advanced comprehension passages and error spotting.

General knowledge and current affairs play a decisive role in the Delhi Police exams. The Delhi Police Constable exam books must cover static GK, history, polity, geography, economics, science, and current events. For this, Lucent’s General Knowledge book is still the most trusted resource. In addition, candidates should refer to Manorama Yearbook for yearly updates and monthly magazines like Pratiyogita Darpan for current affairs. Publishers like Kiran and Disha also provide special Delhi Police exam guides that combine GK with practice sets, making them particularly useful.

Computer knowledge is another area included in the SI syllabus. Candidates can prepare this subject using Objective Computer Awareness by Arihant Experts or Lucent’s Computer. These books explain fundamental computer concepts, MS Office, internet, and cyber security, which are directly tested in the exam. For constable-level preparation, focusing on basic computer knowledge and practical understanding is sufficient, while SI aspirants should go deeper into digital awareness and advanced MS Office applications.

What makes Ashirwad Publication a reliable source for aspirants is its collection of all top publishers under one roof. Aspirants do not have to worry about hunting for separate books across multiple platforms. The store provides Delhi Police books 2025 from leading publishers like Arihant, Kiran, Lucent, Disha, and Oswaal. This makes it easy for students to build a complete preparation kit in one go. Moreover, Ashirwad’s availability of updated editions ensures that aspirants do not end up studying outdated material, which can be a big drawback in competitive exams.

Aspirants must also focus on previous years’ solved papers. For Delhi Police exams, Kiran Publications’ solved papers are highly recommended. These books not only give insight into the exam pattern but also highlight important topics that are frequently repeated. Practicing at least five years of previous papers is a must for both SI and Constable candidates. Solved papers also help in time management, accuracy improvement, and confidence building before the exam day.

Preparation strategy is as important as book selection. Aspirants should begin by building strong fundamentals from standard texts like Aggarwal’s reasoning and maths books. Once the basics are covered, they should gradually move to practice sets and mock tests. Daily current affairs updates should be integrated with static GK revision to ensure balance. SI candidates must dedicate extra time to English descriptive writing and computer awareness, while constable candidates should emphasize accuracy in reasoning and maths. A disciplined timetable that includes study, revision, and practice tests is the key to cracking Delhi Police exams.

While choosing books, aspirants should avoid common mistakes such as buying too many resources without completing even one, relying only on coaching material, or ignoring updated editions. It is better to master a handful of trusted constable exam best books rather than hoarding multiple guides. Consistency and regular revision are more important than the number of books purchased.

In conclusion, preparing for Delhi Police recruitment in 2025 requires a blend of conceptual clarity, consistent practice, and the right set of books. For reasoning and maths, Aggarwal and Verma remain classics; for English, S.P. Bakshi and Norman Lewis are essential; for GK, Lucent and Manorama are indispensable; and for computer knowledge, Arihant and Lucent are highly reliable. With these resources, supported by Ashirwad Publication’s wide range of Delhi Police books 2025, aspirants can confidently prepare for the exams and aim for success in both Sub-Inspector and Constable level recruitment.