Google has become the latest US technology giant to invest in Indian conglomerate Reliance Industries' digital business.
The Alphabet-owned search engine has agreed to pay $4.5bn (£3.6bn) for a 7.7% stake in Jio Platforms.
Reliance's billionaire owner Mukesh Ambani says the two companies will develop phones for 4G and 5G networks.
Google joins a list of new investors in Jio that includes Facebook, Intel and Qualcomm.
Mr. Ambani in a statement to shareholders said Google has empowered millions of Indians to access helpful information and, like Jio, is a force for change and innovation.
Google's chief executive Sundar Pichai said the pace and scale of digital transformation in India is hugely inspiring for them and reinforces their view that building products for India first helps them build better products for users everywhere.
Learn more about your ad choices. Visit megaphone.fm/adchoices