This means that those phones will be able to get Microsoft's Windows Phone 8.1 upgrade. As we have mentioned before with previous OTA updates to Windows Phone 8.1, anyone who has the Lumia 720 and 520 and has already downloaded and installed the Developer Preview version needs to downgrade to Windows Phone 8.0 before they download the new over-the-air update to 8.1.
While we were expecting the Lumia 520 to get updated to Cyan this month in India, the update to the 720 is a bit of a surprise as that phone was not scheduled to receive the update until September. The Lumia 1020 has already received the Cyan update in India, while the Cyan downloads for the Lumia 920, 820, 620 and 825 are supposed to be out next month.
Thanks to the many residents in India who tipped us!