This report provides a comprehensive overview of marketing essentials, focusing on the role of marketing within an organization and its interrelation with other functional units. It delves into the key responsibilities of marketing, including brand management, creating marketing materials, social media management, and sales support. The report also explores the significance of interrelationships between marketing and other functions like finance, purchasing, production, and research & development. Furthermore, it analyzes the elements of the marketing mix (7Ps) – Product, Price, Place, Promotion, Process, Physical Evidence, and People – and how they contribute to achieving overall business objectives. Different tactics employed by organizations, such as Artificial Intelligence for Marketing, understanding customer behavior, and market segmentation, are discussed. The report concludes with the development and evaluation of a basic marketing plan, emphasizing the importance of situational analysis, objective setting, strategy formulation, and action planning, using the SOSTAC framework.