LHB stands for Linke Hofmann Busch, the German company associated with the original passenger coach design adopted by Indian Railways.
Indian Railways introduced LHB technology around the beginning of the twenty-first century.
These coaches use stainless-steel construction, modern bogies, improved suspension and advanced braking systems.
LHB coaches have progressively replaced older conventional ICF-design coaches on many important passenger trains.
They are widely used on Rajdhani, Shatabdi, Duronto and numerous Mail and Express services.