Digital consumerism has become one of the most important factors transforming Indian retail markets in the modern era of e-commerce and digital technology. The rapid growth of smartphones, affordable internet services, digital payment systems, and online shopping platforms has completely changed the purchasing behaviour of Indian consumers. Earlier, retail markets mainly depended on physical stores, traditional shopping methods, and cash transactions. However, today consumers increasingly prefer online shopping because it provides convenience, wider product choices, attractive discounts, easy payment systems, and faster home delivery services. The expansion of e-commerce companies has influenced both urban and rural consumer markets and has created major changes in business operations, marketing strategies, and retail competition. Digital consumerism has also encouraged businesses to adopt digital marketing, online customer services, and technology-based retail systems. At the same time, challenges such as cybersecurity risks, online fraud, digital inequality, and competition for small retailers continue to affect the retail sector. This research paper examines the rise of digital consumerism and analyses its impact on Indian retail markets, consumer behaviour, e-commerce growth, and business transformation in the digital economy.