Alphabet Inc.’s Google will invest about $4.5 billion in Jio Platforms Ltd, the company behind India’s largest telecom provider by subscribers, giving the American tech giant a powerful partner for its plans to get hundreds of millions more people online.

Google will take a 7.7% stake in Jio, which brought the internet to millions of people who previously couldn’t afford it by offering inexpensive handsets and data plans. It now has more than 388 million subscribers.

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