Combined Defence Services Examination [CDS] is one of the best opportunities in the lives of the candidates who are preparing for the Military examinations. This exam is conducted by the Union Public Services Commission (UPSC) twice a Year in the month of February and November to conduct officers in the Defence Forces: Indian Army, Indian Navy & Indian Air Force. The 2020-21 edition of ‘CDS Chapterwise/ Sectionwise Solved Papers’ is one point solution for that provides the practice of complete syllabus. The book divides the entire syllabus into 4 Major Sections; Elementary Mathematics, English, Science & General Studies and every section has been Sub-divided into chapters for thorough practice. Housed with such customized study material for effective and robust preparation, it is a highly approachable book to get the real knowledge of exam pattern, level of toughness and trends of questions to perform best in the exam. TABLE OF CONTENTS Elementary Mathematics, English, Science & General Studies.