The full form of "DNR" in the context of trains usually refers to Danapur Railway Station (or Danapur Junction).
Danapur Railway Station, with the station code DNR, serves as the headquarters of the Danapur railway division within the East Central Railway zone of Indian Railways. It's a significant railway hub connected to major metropolitan areas of India via the Delhi–Kolkata main line, specifically through the Mughalsarai–Patna route.
Therefore, when you see "DNR" associated with trains, it almost certainly points to Danapur Railway Station.
