Fake MIUI 12 builds for the Redmi Note 8 and Redmi Note 7/7S have been discovered. The software versions apply to both the Global and India variants of the Redmi Note 8 and Redmi Note 7/7S. Owners of these smartphones are advised to disregard false information about these particular MIUI 12 forgeries.
https://www.notebookcheck.net/Redmi-Note-8-and-Redmi-Note-7-owners-need-to-be-wary-of-fake-MIUI-12-builds.497854.0.html