A conglomerate run by Asia's richest man has started rolling out a challenger to Amazon in India, APA reports citing BBC.
Mukesh Ambani's Reliance Industries said it has 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 is emerging as 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.
Unlike its rivals, JioMart will connect local stores to customers via an app rather than providing and delivering the goods itself.
India's online grocery market is in its infancy - currently estimated to be worth around $870m a year, with just 0.15% of the population using such services.
However, analysts predict the sector could see annual sales of around $14.5bn by 2023.