This book has been specially published for the aspirants of ‘Border Security Force (BSF) – Constable (Tradesman)’ Recruitment Exam. The book comprises, along with the Study and Practice Material, a Solved Question Paper to make you familiar with the exam pattern. Detailed Descriptive Answers have also been provided for Selected Questions for Better Understanding. The book contains adequate Study and Practice Material with numerous Multiple Choice Question-Answers on all the relevant subjects important from the point of view of examination. Both the Study and Practice Material have been prepared by respective subject-experts. Based on the Current Pattern of exam, the book will prove very useful for study, practice and during the precious moments before the exam for reference and revision. The book is highly recommended to Sharpen your Problem Solving Skills with thorough practice of numerous questions provided in the book, and prepare yourself to face the exam with confidence, successfully.