This document discusses mergers and acquisitions (M&A). It defines an acquisition as one company buying another to make it a subsidiary, while a merger combines two companies on an equal basis to create a stronger competitive advantage. Some key differences between mergers and acquisitions are provided. Several examples of major M&A deals involving Indian companies are outlined, including Tata Steel-Corus, Vodafone-Hutchison Essar, and RIL-RPL. The merger between Air India and Indian Airlines is also summarized. Finally, the basic process for M&A deals in India is outlined in several steps.