Dabbawala

A tiffin-delivery professional. While this may sound confusing at the get-go, this unique service-provider performs a very critical function in the city of Mumbai. He delivers food made at your home to your office precisely at lunch time. Then, he returns the empty tiffin-box back to your place.

A by-now well-documented industry, found typically in Mumbai, the stars who ply through the horrible traffic efficiently through rain or shine.

Literally, dabba (box), -wala (an individual dealing in), so a "an individual dealing with/ in boxes".