The model name stands for broad gauge (W), Diesel (D), Passenger traffic (P) engine, 1st generation (1).

A total of 69 WDP-1 units were built at Banaras Locomotive Works (BLW), Varanasi between 1995 and 1999.

Despite the introduction of more modern types of locomotives such as the WDG-4, and electrification, a significant number are still in use, both in mainline and departmental duties.

They are still in service and are homed either at TKD & BZA to haul short commuter trains and shunting around the area.

They look just like all other ALCOs and are easily identified by the laterally “sculpted” and baldie grille-less short hood.