Labour Law is a subject that is constantly evolving under the influence of new legislations, judicial interpretations, and the impact of foreign law on labour and industrial relations practice. This small book on Employees’ State Insurance Act, 1948 with Rules & Regulations is designed to provide answers to the most frequently raised queries on the subject of ESI Schemes and issues related to it. Foremost aim while writing this book has been to produce a text which is broadly comprehensive in nature and presents the law in a most simple and readable manner.  To assist the reader in understanding the law better, the provisions in this book at various places have been broken in graphic display.  Cases and the judgments delivered on them have been presented in tabular form. The ESI Act has been preceded by its historical background to generate interest amongst the users about the periodic growth and development of the Act in the country. To ensure clarity and easy understanding of the subject, each concept has been supported by judicial interpretation and case laws, at appropriate places.