This book has been written to minimize the need to consult multiple books while preparing for the exam and give the students a step-by-step guide for learning the subject. \nThis book is written in simple language, explaining the provision of the law in a step-by-step manner with the help of suitable 'original' illustrations, without resorting to paraphrasing of sections and legal jargons. This book helps bridge the gap between theory and application of the subject matter. \nThe Present Publication is the 11th Edition & updated till 15th July 2023. This book is authored by Dr Vinod K. Singhania, with the following noteworthy features: \nCoverage of this book includes: \no Unit 1 covers GST comprehensively \no Unit 2 covers Custom Duty comprehensively \n[Self-Learning/Practice Book] Features teach yourself technique enabling students to learn faster \n[Analytical Discussion] Each para starts with analytical discussions supported by 'well-thought-out-original-problems'. A unique style of illustrating all complex provisions has been adopted \n[Theoretical Discussions Supplemented by 300+ 'Unique' Illustrations] providing solutions to the knotty problems with reference to the latest position of the law \n[Unique Illustrations] The problems/illustrations provided in this book have neither come in any examination paper nor are these to be found in print anywhere \n[Solved/Unsolved Problems for Practice] Every solved problem is followed by an unsolved exercise, for which answers are given at the end of the book