Investor demand for India's biggest-ever IPO is showing no signs of slowing. Subscriptions for Jio Platforms' US$3.2 billion offering surged to more than 10 times what was available on the final day. This means investors have put in bids worth more than US$24 billion. Jio is controlled by Indian billionaire Mukesh Ambani and its mobile network serves more than 500 million users. Neha Poonia reports from New Delhi.