Mukesh Ambani's Reliance Industries said it had been inviting people to sign up to its grocery delivery service. The company is aiming to use its massive mobile phone customer base as a springboard for the business. The new e-commerce venture could become a major challenger to India's existing online retail giants. Two subsidiaries of Mr Ambani's business empire, Reliance Retail and Reliance Jio, said they had soft-launched the venture, called JioMart. JioMart says it offers "free and express delivery" for a list of grocery goods, which currently numbers some 50,000 items.
