Timeline of all Site Edits
Detach: TKD/WDP-4D NZM/Hazrat Nizamuddin->ASR/Amritsar Junction
Attach: TKD/WDP-4D NZM/Hazrat Nizamuddin->ASR/Amritsar Junction
12731/12732 as per https://indiarailinfo.com/blog/post/2341476
Locomotive change E to D
Change of loco from electric to diesel