Regulators in India are investigating whether Amazon.com Inc may have circumvented restrictions placed on foreign investors by selling directly to domestic consumers, The Wall Street Journal on Friday, citing unidentified sources. India does not allow foreign firms to own majority stakes in retail companies that sell more than one brand. Amazon was not immediately available for comment. The Seattle-based e-commerce company makes its money in India by charging third-party suppliers to use its website to sell some 17 million different products, from books to electronics.