The document discusses the e-commerce supply chain challenges in India. It provides an overview of the e-commerce industry trends, key drivers and challenges. Some of the major challenges discussed include lack of logistics infrastructure, issues with last mile delivery, return orders, cash on delivery, and integrating with multiple logistics partners. The document also analyzes Porter's five forces of the industry and discusses factors affecting the bargaining power of suppliers and customers. Lastly, it evaluates different business models and strategies companies could adopt from 2015-2019 to succeed in this competitive environment.