This document provides an overview of e-commerce, including what it is, why it is growing, challenges and opportunities. Some key points: - E-commerce allows buyers and sellers to connect online globally to buy and sell products through internet platforms. It is more convenient than traditional retail. - The global e-commerce market is expected to grow significantly, reaching $200 billion in India by 2026. The number of online users is also growing rapidly. - E-commerce provides opportunities for reliable transactions, accessing unlimited customers worldwide, fast execution, and passive income. Challenges include security, advertising, customer retention and fundraising. - Some successful Indian e-commerce startups that received funding include