If you read the comments the narrative leaves out the part about the criminal gang were muslim
Muslims have been blood enemies of the Gurkhas for quite some time. The Timurids in the 14th century and then the Mughals under their sultan Akbar in the 17th century had devastated the Gurkhas' ancestral homelands. There were forced conversions, deportations, massacres and wholesale destruction and burning of temples and religious icons.
Wasn't there recently several accounts of Gurkhas serving the British Army in Afghanistan who REALLY put the fear of God in Taliban fighters by their sheer viciousness in battle?