DA

DA is the three-letter station code assigned to Dhaka railway station, the principal passenger and freight terminus serving Bangladesh's capital. Like all railway stations in South Asia, Dhaka uses this abbreviated designation on timetables, ticket stock, waybills, and operational signalling systems. The code appears on departure boards, parcel labels, train diagrams, and in the station master's register. For railway staff and passengers alike, DA is the shorthand that eliminates ambiguity when routing traffic across the network.

Station codes across the Indian subcontinent follow a standardized format established during the railway era. Most major terminals use three letters; some regional stations use two. The code is printed on every official document that crosses a station boundary, from freight manifests to passenger manifests. In Dhaka's case, DA identifies trains originating from or terminating at this location, distinguishing them from other Bangladesh Railway stations such as Kamalapur or Narayanganj.

Operationally, DA appears in train schedules published by Bangladesh Railway, in telegraph and telephone communications between stations, and in the railway's computer systems for booking and tracking. A ticket issued at DA carries this code; a consignment routed through DA is labeled with it. Station staff use DA when logging train arrivals, departures, and platform allocations. The code is essential for clarity in a busy network where dozens of services move daily.

The three-letter code system predates modern rail networks by decades and remains virtually unchanged. It is governed by the station directory maintained by the operating railway authority. DA has remained constant through various administrative reorganizations of Bangladesh Railways because changing station codes would cascade through hundreds of printed forms, schedules, and records already in circulation.