Retailing involves the sale of goods and services to consumers for personal use. The top ten largest retailers in the United States are led by Walmart, with supermarket and department stores making up many of the other spots. Retail in India is a large and growing industry, with various formats like malls, specialty stores, discount stores, and department stores emerging. New retail chains in India first emerged in the 1990s, shifting from manufacturers to pure retailers, and growth has continued with the emergence of shopping centers and hypermarkets.