In accordance with an Indian Ministry of Railways decision, Indian Railways switched from its previous four-digit numbering system for passenger trains to a five-digit system on December 20, 2010.[1][2][3]
- ^ "Government Of India Circular" (PDF). 15 November 2010 – via Railway Board.
- ^ "Railways replace 4-digit numbering system with 5-digit". 12 December 2010 – via The Times Of India.
- ^ "Ministry of Railways". 18 November 2010 – via Press Information Bureau.