Warehouse refers to commercial place for storing goods. Godown is generally used by retailers for storing own goods.
A godown is an unorganized form of warehouse used for the storage of goods. It is usually a commercial building or any storing place. Any place can be converted into a godown by storing products.
Meaning a warehouse or place for storing goods, “godown” was originally used with reference to Southeast and South Asia, as well as East Africa, and is found in writings from the late 1500s of servants – officers, merchants – of the British East India Company traversing these regions; in Portuguese it was documented in
A warehouse is a building for storing goods. ... In India and Hong Kong, a warehouse may be referred to as a "godown".