BNR class NM
The Bengal Nagpur Railway class NM was a class of ten 4-8-0+0-8-4 Garratt locomotives manufactured by Beyer, Peacock & Company in England. This was modified N class Garratt with a 17-ton axle load. It had thermic siphons and arch tubes for better performance. It worked on the Bilaspur-Katni line and Anuppur-Chirmiri branch line for hauling coal. They were withdrawn by the late 1960s, possibly due to their poppet valves.
| Technical specifications | - |
| Boiler diameter | |
| Heating surface of firebox | |
| Maximum train load | on level track |