Google had first introduced Android One handsets in 2014 with Indian phone makers like Micromax, Spice and Karbonn, with all devices priced under Rs 6,500.
Despite the big bang launch, very few devices were launched in the time that followed and it looked like Google had pulled the plug on Android One.
"I would not consider this a reboot... We have been working in this direction now for a couple of years just a little bit more quietly," Google Global Director of Android Partner Programmes Jon Gold told reporters here.
Google offers the stock Android experience (most handset makers add their own layer of customisation) and regular security updates as part of the Android One OS.
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According to market watchers, the first attempt by Google was probably not successful because there were devices with better specifications in the Rs 6,000-10,000 range.
Gold, acknowledging the muted response to the previous devices, said, "I think that it was sort of wrong setting in the wrong time (compared to) where we are today."
He, however, declined to comment on the number of devices sold under Android One or elaborate on the possible reasons for the lukewarm response.
Gold said while Google is working with multiple original equipment manufacturers (OEMs) to bring out more handsets based on Android One across price bands, "more of them will probably be in the mid range".
According to Counterpoint Research Associate Director Tarun Pathak, over 5 million Android One devices have been sold across 20 countries.
Xiaomi, which ranks among the world's top five smartphone companies, will be rolling out the device across 40 countries including Russia, Poland, Ukraine and Mexico.
"Mi A1 is a strategic device in our global expansion. Since the time Google came to us, we have worked together to bring out this device... Both of us committed to future software and security updates," said Donovan Sung, Director of Product Management at Xiaomi Global.
The Mi A1 is the company's first dual-rear camera phone with a 12 MP wide angle camera and a 12 MP telephoto camera.
It will be available from September 12 at Mi.Com, Flipkart, Mi Homes, Mi Preferred Partner stores and large format retail partner stores.