This report examines the complexities of international human resource management (IHRM) through the lens of Microsoft's expansion into India and Sri Lanka. It analyzes the challenges of entering a global market, including cultural differences, legal regulations, and economic factors. The report proposes a merger and acquisition strategy for Microsoft in these countries, evaluating its benefits and limitations. It also explores the impact of cultural shock on expatriate employees and discusses strategies for preparing and motivating them for overseas assignments. The report concludes with recommendations for Microsoft to effectively manage its international workforce and achieve sustainable growth in these emerging markets.