Paytm's CEO Vijay Shekhar Sharma on Thursday rang the opening bell at the Bombay Stock Exchange to mark his company's listing on the stock exchanges, following India's biggest ever IPO. A video showed his son Vivaan accompanying him in doing so. Shares of Paytm parent One97 Communications listed at ₹1,955 apiece on BSE, a 9% discount over its IPO price.