After the tablet was slightly exposed to rainwater, a water stain/shade-like issue appeared on the display. The shade visible in the photos is currently on the display.
However, the display is working completely—touch, brightness, and other functions are operating normally. The tablet was taken to the Xiaomi Store for a check. According to their check, there are no other issues with the tablet except for that display shade.
Only the camera is currently not turning on/working. Everything else can be used normally.
I am clearly mentioning the issues without hiding them so that the buyer can take the tablet with full awareness. If interested, you can check and inspect it in person.