DLMW is a fully owned unit of IR, and is established at Patiala. Punjab. Earlier it was known as DCW, Diesel Component Works, which used to manufacture spare parts for ALCos and also used to export these parts to other countries. Now after DLMW, they now rebuild old Alcos with microprocessors and other latest instrument panels etc. They also manufacture WDM3D and WDM3A locos. So, any loco with road number ending with R means , they are most probably rebuilt at DLMW Patiala. The ET 80000 and 80001 are also manufactured here.