It is generally known that electronics and water can never be coupled. In many different situations, the water fries the electronic devices, and it stops serving completely. But thankfully, it can be fixed by removing the water in the keyboard.
The first thing is that you do not panic if something has fallen on the laptop. Disengage your laptop, remove the battery and turn your laptop upside down so that water droplets come out and do not damage the electronic items inside the laptop.