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WDP4B #20103 of Tughlakabad (Last WDP4 series loco in 20xxx numbering scheme)
WAP4 #22299 of Kanpur Central
WAM4-6P #20617 Charlie Chaplin of Itarsi
WDP4...
more... #20012 of Siliguri Jn (first indigenous WDP4 by DLW and ex-Baaz)
By Santulan Mahanta