The present book on Mathematics has specially been published for the aspirants of ‘NDA & NA Entrance Examination’ conducted by the UPSC. Based on the Current Pattern of the exam, the book also comprises Solved Test Papers for aspirants to make them familiar with the current trends of exam, the type of questions asked, and their answers.All the Relevant & Important chapters & topics are covered in the book at appropriate length in a Reader-friendly manner. Additionally, Exhaustive Exercises are also provided to make the readers well-prepared for the exam.The book contains ample amount of Study and Practice Material comprising numerous MCQs with Answers and Explanations, wherever necessary. Most of practice questions incorporated in the book have been taken from various previous exam papers and solved by subject-experts. In short, you can bank upon this book for study, practice and during the precious moments before the exam.The book is highly recommended for the aspirants to Sharpen their Problem Solving Skills with intensive practice of numerous questions provided in the book, and prepare themselves to face the exam with Confidence, Successfully.While the specialised study material of this book is aimed to professionally guide you for the exam, your own intelligent study & practice with it will ensure you a definite success in the exam, paving the way for a Glorious Career with National Defence Services.