As per its exam calendar, the Union Public Service Commission (UPSC) will hold the CDS 1 2025 written exam on 13th April 2025. As the dates have already been announced, candidates must be searching for model test papers and learning aids to boost their CDS written scores. In this article, we have provided the best learning material and aids to give you wholesome enriching learning guidance straight from the best in the Defence sector, i.e. Centurion Defence Academy.

Join CDS 1 2025 Crash Course

Prepare for the CDS written exam with Centurion Defence Academy’s crash course. Our CDS 1 2025 crash course is an intensive 45-day program offering 4-hour classes, free study materials, mock tests, backup classes, daily practice papers, and doubt-clearing sessions. It is available offline in Lucknow and Dehradun and online through the Centurion Digital App. For more details, feel free to contact us at +91 9795977776 / +91 9795977779.

Age Limit for CDS-1 2025 Exams

The pathway to a career in the armed forces is filled with aspirations and dedication. In India, every year, tonnes of candidates compete in the NDA, CDS, and AFCAT exams to join the prestigious Defence Academies and work for the nation. However, the journey in fulfilling this dream is dependent not only on one’s passion and commitment but also by certain age limits set aside by the Board Authority.

If your dream is to serve the nation by cracking the CDS exam, below is the age limit for the CDS 1 2025 exam for all academies whether it is IMA, INA, AFA, or OTA.

CDS 1 2025 Age Limit

Academies          Date of Birth

Indian Military Academy (IMA)      2nd January 2001 to 1st January 2006

Indian Naval Academy (INA)        2nd January 2001 to 1st January 2006

Air Force Academy (AFA)               2nd January 2001 to 1st January 2005

Officers Training Academy OTA (Men)      2nd January 2000 to 1st January 2006

Officers Training Academy OTA (Women)       2nd January 2000 to 1st January 2006

For AFA, the upper age limit for candidates holding valid and current Commercial Pilot Licence issued by DGCA (India) is relaxable for up to 26 years. Thus, for such candidates, the CDS 1 2025 age limit is from 2nd January 1999 to 1st January 2005.

CDS 2025 Study Material: Books, Course, Notes

The Combined Defence Services (CDS) examination is one of the most sought-after exams in India for aspiring candidates to join the Indian Armed Forces. The UPSC conducts the CDS exam twice a year and lakhs of candidates appear for this exam. To prepare effectively for the CDS exam, aspirants need the right study materials, notes, and courses. Centurion Defence Academy, the best coaching for CDS preparation, provides comprehensive and detailed study material, notes, and courses to help candidates succeed in CDS 2025. Read on to know more about CDS 2025 study material and how referring the same can help you in acing the CDS exam in 2025.

Why Centurion is best for referring to CDS 2025 Study Material?

The market has hoards of books and study materials for CDS preparation, but one must follow a strategic and standardized study plan to crack this exam. Centurion Defence Academy has years of experience in defence exam preparation. With the prevalent expertise and research, its faculty members have created and devised the best study materials for CDS 2025 preparation. Whether you want to refer an English book for CDS preparation, General Knowledge or Elementary Mathematics, Centurion Defence Academy has covered everything in its holistic preparation. CDS aspirants willing to join IMA, INA, AFA or OTA should refer to the mentioned books and notes offered by Centurion Publication for CDS preparation. Below enlisted are enough reasons as to why candidates must choose Centurion for CDS 2025 study material. In addition to this, it is also clear with the below-mentioned points why Centurion Defence Academy stands out as the best CDS coaching in India.

• Proven Track Record of Selections
• Effectiveness in CDS preparation
• Experienced Faculty Members
• Best Guidance and Mentorship
• Comprehensive Study Material
• Paper Research and Analysis
• Regular Classroom Programs
• Latest Syllabus and Exam Pattern
• In-depth Coverage of Each Subject
• Coverage of Previous Years’ Papers
• Extensive Practice Sessions
• Mock Tests and Practice Papers
• Personalized Attention and Guidance

Importance of CDS Study Materials 2025 by Centurion

Centurion Defence Academy’s publication has several in-house books that can be refered for sure shot success. The CDS English book by Centurion Defence Academy is the best study material for the CDS 2025 exam. Besides, Centurion Publication also provides the best General Knowledge book for CDS exam preparation. In addition to this, you can also get Geography / Economics and History / Polity books for concise preparation of the CDS 2025 exam. After clearing the CDS exam, eligible candidates can join either Indian Military Academy or Indian Naval Academy or Air Force Academy or Officers Training Academy. If someone wishes to join OTA, he/she needs to attempt only English and General Knowledge papers. On the other hand, those seeking admission in IMA, INA or AFA have to attempt an additional paper, that is the Elementary Mathematics paper.

CDS English Book for 2025 Preparation

English is one of the prime subjects in the CDS exam and it is a compulsory paper for all CDS aspirants. There are various topics in the CDS English paper such as vocabulary, spotting errors, para jumbles, cloze test, identification of parts of speech, subject-verb agreement, reading comprehension, etc. Besides, English is also the maximum scoring subject in the CDS exam, therefore, candidates need to thoroughly cover this paper to score maximum marks in the exam. For concise English preparation for the CDS 2025 exam, you can refer to the CDS English books by Centurion Publication, which cover all aspects that you need for CDS English preparation.

Geography/Economics Books for CDS 2025 Preparation

Geography and Economics are two main components in the CDS General Knowledge paper. For the holistic preparation of the CSD 2025 exam, candidates need to cover these two subjects properly as a large number of questions are covered from these two subjects in the CDS GK paper. Besides, candidates should also refer the NCERT books for concise preparation. Further, one can also refer to the Geography / Economics Books by Centurion Publication to understand the key concepts and improve their fundamental understanding.

History/Polity Book for CDS 2025 Preparation

Polity is everyone’s sought-after subject in the CDS General Knowledge paper. The polity section in the CDS GK paper majorly contains a large number of questions. It is one of the most scoring parts but one must have a clear understanding of the fundamentals and basics of polity and constitution. To get complete knowledge of important history and polity topics, CDS aspirants can refer to the History and Polity Book by Centurion Defence Academy for CDS 2025 preparation.

Get Online Reference Materials From CDS through the Centurion Digital App

Centurion Digital App provides the best online study materials for CDS 2025 preparation in the entire market. It is an interactive platform by Centurion Defence Academy to provide extensive online learning experience for the CDS aspirants. Here you can get e-books, video lessons, mock tests, quizzes, and much more. Download the Centurion Digital App from the Google Play Store and boost your CDS 2025 preparation to achieve most from the preparation.

Which is the best Coaching for CDS 2025 Preparation

When it comes to CDS 2025 study materials, Centurion Defence Academy stands out as the most reliable and trusted choice of all aspirants. With experienced and trained faculty members and comprehensive study materials, Centurion has consistently delivered outstanding results in the defence exams. Choosing Centurion Defence Academy will help you gain a thorough and in-depth knowledge of all important topics required for the CDS exam. Start your CDS preparation with the best CDS coaching and achieve your dream of serving the nation.

CDS-1 2025 Best Offline/Online Course by Centurion

Centurion Defence Academy avails the best course for CDS-1 2025 wholesome preparation. In this online/offline batch for CDS 1 2025 by Centurion Defence Academy, candidates will receive daily classes, free study material, bimonthly mock tests, and subject-wise test, current affairs on daily basis, backup classes, and complete course coverage. Join this holistic course for CDS 1 2025 immediately by Centurion Defence Academy, which provides the best and standardized coaching for CDS preparation in both online as well as offline mode in its Lucknow and Dehradun centers.

Centurion’s CDS-1 2025 course follows the latest syllabus and exam pattern. The professional subject-matter experts at Centurion have made a detailed and thorough analysis of the CDS exam to create the best CDS 2025 study plan. Here, you will also get in-depth mock tests and practice questions to enhance your CDS 2025 preparation. If you want to gain complete study materials for CDS-1 2025 along with e-books, quizzes, and mock tests, you can download the Centurion Digital App available from the Google Play Store.

Books to Refer by Centurion Defence Academy For CDS-1 2025

For holistic preparation of English for CDS, you can surely refer to the CDS English book by Centurion Publication, which is the best study material for CDS 2025 preparation.

Further, it is imperative to stay updated with current affairs by reading newspapers and magazines. You can also refer to standard General Knowledge books for CDS preparation by Centurion Defence Academy.

To get daily updates of Current Affairs for CDS 2025 preparation, you can subscribe to the official YouTube channel of Centurion Defence Academy. You can also access Centurion Digital App for online study materials for CDS preparation, daily quizzes, mock tests, and online classes as well as the latest updates related to defence exams.

Centurion Defence Academy is the most reliable and sought-after source for defence exam preparation. Its flagship initiative under Centurion Publication provides the best and most trusted books available for CDS 2025 preparation. You can choose Centurion Publication for complete study materials for all three papers of the CDS 2025 exam and ace your chances of selection.