This document provides an overview of mergers and acquisitions (M&A). It discusses the key reasons and rationales for M&As, including synergistic operating economics, diversification, taxation benefits, and growth opportunities. The document also explains the different types of M&A transactions and defines key terms like mergers, acquisitions, amalgamations, and consolidations. It provides examples of well-known M&A deals in India and their rationales. Finally, it discusses the concept of synergy gains from M&As and how the combined value of the merging companies can exceed the sum of their individual values.