The rapid development of India’s e-commerce sector has been significantly influenced by the integration of digital marketing strategies, which serve as critical tools for enhancing consumer engagement, brand visibility, and boosting overall sales performance. The aim of this study, with a special focus to Dhanbad City, is to evaluate digital marketing practices’ impact on the development of local e-commerce enterprises. The study highlights how strategies such as social media marketing, email campaigns, influencer collaborations, search engine optimization (SEO), and pay-per-click (PPC) advertising contribute to customer acquisition and retention in a competitive digital marketplace. In this study, a mixed-method approach applied containing primary data as well as secondary data. The primary data collected through interviews with local entrepreneurs and surveys of consumers, and the secondary data covered from academic literature and industry reports. The output of this study highlights that digital marketing expands greater market reach as well as bring up trust and loyalty among consumers, thereby accelerating the growth path of e-commerce businesses in competitive environments. Furthermore, the finding of this study also highlights local challenges such as limited digital literacy, varying consumer preferences and infrastructural constraints, which influence the effectiveness of these strategies. The analysis of the study highlights the significance of varying digital marketing initiatives to local contexts while leveraging global best practices. In the end, the research contributes to understanding the dynamic relationship between e-commerce growth and digital marketing, offering insights for policymakers, entrepreneurs, and the focus of marketers is to strengthen the digital economy in emerging urban centres like Dhanbad.