Either this was a hit by Special Forces (good job!) against a Khalistani supporter or some rival gangs have weaponry smuggled out of Ukraine via Pakistan.
BTW Moose Wala was a Khalistani.
Only Special Forces have access to exotic Russian weaponry like the AN-94.
The gun is very unique due to it's mass based recoil compensation and 2 round burst mechanism.
How the heck do common thugs get a hold of such weaponry?