Difference Between Plinth Level, Sill Level, and Lintel Level

What is the Plinth level?
The plinth level is the intersection of a building's superstructure and foundation.

This is, to put it simply, the point at which the building's superstructure (the columns) begins and its substructure (the footing) ends. It is a portion of the superstructure that spans the building's floor level to the tie beam top at ground level.

How do you calculate plinth height? Why does the plinth remain elevated above the floor?

Plinth height is typically maintained higher to shield the building from moisture and to stop water from entering the house during rainy seasons. At the plinth level, we do damp proofing and anti-termite treatment to stop moisture and termites from entering the building.