Question -Answer based study material. Point to Remember section gives at-a-glance summary of each br>Chapter complete solutions/answers to all textual exercises. Glossary of difficult words and terms used in the br>Chapter 'did you know?' gives supplementary information to boost general knowledge. Chapter-wise test papers to facilitate revision. Model Test Paper ensure thorough preparation for the exams. Concepts Maps, Multiple Choice questions (MCQs), HOTS etc. Wherever required.