This document provides an in-depth look at Preferential, Undervalued, Fraudulent, and Extortionate (PUFE) transactions under the Insolvency and Bankruptcy Code (IBC). It details key sections (43, 45, 66, 50), outlines the duties of Resolution Professionals (RPs) under Regulation 35A, and highlights landmark case laws. This guide is essential for RPs, legal professionals, and anyone involved in insolvency proceedings seeking to understand and identify transactions that can be avoided to maximise asset recovery.