Special features of the textbook are : ¿ Each chapter is divided into several sections covering all components of the syllabus. ¿ It has logical and systematic presentation. ¿ It incorporates a large number of diagrams and schedules with explanations. ¿ To give students an edge over the basic knowledge of the matter, 'An Extra Mile' has been given at the end of each chapter. ¿ Exercise is tuned to the pattern of examination. The exercise includes: ¿ Questions relating to remembering & understanding of the subject matter. ¿ Reason based questions. ¿ Previous years' CBSE questions. ¿ Information and concept based questions. ¿ NCERT questions