The XG was a 0-8-0 shunter in the IRS program that was designed by Messrs. Bender, Palmer & Tritton for the North Western Railway. Only three were built by Beyer, Peacock & Co. in 1928 for hump shunting which were numbered 911 to 913. It seems like their axle load of nearly 23 tons was too high for other yards, but even the lighter XF 0-8-0 was only ordered six times.
To reduce their axle load, the Mughalpura shops rebuilt them to 2-8-2 locomotives in 1943 and designated them XG/M. After that, the rear driving axle had the highest load with only 18 tons and 19 cwt. With their small drivers of only 4 feet and 3 inches, it is likely that they were still used as shunters after the rebuild. Today 911 is still existing and on display in the National Railway Museum at New Delhi.