Armoured trains fitted with long range 'maxim' guns were used extensively by the British in India, on all those areas having access to the railway. The use of such trains was most common during World War I. The National Rail Museum has managed to rescue and preserve one such complete MG train of six cars. Converted into an armoured train at the Ajmer Works from freight cars on 1880s vintage, each car is fitted with a half inch thick armoured plate, followed by a 3" thick felt lining, with another 3/4" thick armoured plate after that - enough to protect the occupants against normal gunfire.

Each of the six cars served a specific purpose - the first one is an open flat car built in 1886, fitted with a cowcatcher at one end, the second one is a Covered Armoured car built in 1890, is fitted with a searchlight on the roof along with two maxim guns inside, the third car is open car for 12 pounder gun, the fourth one is a covered 4-wheeled armoured car for petrol engine and generator, the fifth is again a covered armoured car built in 1890 & is fitted with a searchlight on the roof along with two maxim guns inside and finally the sixth one is again an open flat car built in 1886, fitted with a cowcatcher at one end.