TLDR: This article discusses the role of big data in the evolution of the FinTech sector in India. The digitization of the BFSI sector has led to significant growth in digital financial services in the country. Big data plays a crucial role in this transformation by providing insights and analytics that drive business decisions and improve customer experiences. The article highlights a few key ways in which big data has contributed to the evolution of financial services, including hyper-customer segmentation, better customer experiences, and accurate decision-making. It also emphasizes the importance of data ethics and privacy in establishing trust between financial institutions and customers. Overall, big data has enabled financial institutions to gain deep insights into customer behaviors and preferences, leading to more personalized and tailored products and services.