may locos WDP 4 is mentioned, but they are WDP 4B, its better to tag correctly & accurately.
the loco was initially as TKD/WDM-2A/18471, later on got upgraded to higher HP as TKD/WDM-3A/18471R.
so either its TKD/WDM-2A/18471 or TKD/WDM-3A/18471R.
TKD/WDM-3A/18471 is wrong technically.