This handbook provides a comprehensive guide to the Goods and Services Tax (GST) Act and its associated rules, specifically tailored for departmental officers. It aims to simplify the intricacies of GST law and procedures, offering clear explanations and acting as a ready reckoner for uniform implementation. The handbook covers various aspects of GST, including registration, returns, assessment, offences, and penalties, making it an essential resource for officers to understand and apply GST laws effectively.