@ter The usual livery of Ernakulam Diesel Shed is the color scheme of this loco http://trainspo.com/photo/65656/ . But when this WDM-3A when for rebuilt in Patiala Diesel Loco Modernisation Works , they painted it with the livery of WDM-2G ( http://irfca.org/apps/locos/show/12721?pag.../12721?page=279 ) to this loco too which makes this color scheme unique in WDM-3A class. This color scheme doesn't belong to any diesel shed of IR . So it makes it unique in a WDM-3A color scheme . This loco is fitted with DBR and APU too after rebuilt