Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
The Indian locomotive class WT was a class of 2-8-4T heavy tank locomotives used on 5 ft 6 in (1,676 mm) broad gauge lines in India from 1960. These locomotives were built to operate local trains in Eastern Railways zone on Howrah to Burdwan main line.