This document provides course material on mercantile laws for the CA IPCC exam. It includes an index of chapters and topics, examination trends for each chapter, guidelines for reading the material, and sample questions. The first chapter covers the meaning and nature of contract. It defines key terms like promise, reciprocal promise, agreement, and contract. It explains that a contract requires an agreement between two parties as well as legal enforceability, meaning it is enforceable by law. Sample questions ask students to define these terms and explain the concept of legal enforceability in contracts.