In the digital age, advertising has evolved from traditional media to highly interactive and personalized digital platforms. Digital advertising leverages advanced technologies such as artificial intelligence, big data, and targeted marketing to influence consumer behavior and preferences. Consumers are exposed to various forms of digital advertisements, including social media ads, search engine marketing, email promotions, and influencer marketing. These advertisements play a crucial role in shaping purchasing decisions by creating brand awareness and influencing perceptions. As internet penetration and smart phone usage increase, digital advertising has become an essential tool for businesses to reach their target audience effectively. This study aims to explore how digital advertising impacts consumer behavior in Coimbatore, a rapidly growing commercial hub in Tamil Nadu. This research aims to provide insights into the effectiveness of digital advertising in shaping consumer behavior in Coimbatore. By analyzing consumer perceptions, attitudes, and responses to digital ads, the study will highlight key trends in digital marketing. It will also identify challenges such as ad fatigue, privacy concerns, and skepticism toward online promotions. The findings will be valuable for marketers, business owners, and advertisers looking to improve their digital advertising strategies and create meaningful consumer connections. Ultimately, this study will contribute to the broader understanding of digital marketing’s role in shaping modern consumer preferences in Tamil Nadu.