The Tata Group's growth strategy focuses on both overseas expansion and exploring India's emerging mass market through innovative product development. Mergers and acquisitions (M&A) have been crucial for their growth, offering benefits like vertical integration and access to new markets, but also face challenges such as high maintenance costs and cultural integration issues. Successful acquisitions, notably Daewoo Commercial Vehicles, have significantly boosted Tata's market presence and revenues, showcasing the effectiveness of their strategic investments.