‘Organic Chemistry – A Modern Approach, Volume I, 1e’ is primarily intended for the students of B.Sc. Honours (Chemistry) course of Calcutta University and other major Eastern Indian Universities. The book has been aimed at ‘learning by practice’ approach. The book provides a detailed step-by-step explanation to various reaction mechanisms supplemented with graphical presentation of bonds at every step. The text lays special focus at the explanation of topics such as hybridization, electronegativity and bond polarity, stereochemistry and reaction mechanisms- SN1, SN2, SN2’, SNi mechanisms and NGP. Supplemented with a total of 1000 solved examples and unsolved questions, the text holistically imparts ample scope for self-study and exam-orientation. 1. A total of 400 solved examples and more than 600 practice questions for adequate theoretical and numerical clarity of the concepts 2. Special focus has been laid on topics related to- hybridization, electronegativity and bond polarity, acids and bases, inductive effect, stereochemistry , nucleophilic substitution reactions at saturated carbon atom and elimination reactions 3. Strikes a balance between theory and mechanisms with special focus on the reactions supplemented with step-by-step explanation 4. Designed as a comprehensive ‘one-stop solution’ to suit all academic needs of a student for this course