Step 1: Forensic texts classify violent asphyxial deaths by the exact mechanism used to compress the neck. The clue here is that the pressure on the neck comes from the crook of the attacker's flexed arm, not from hands or a cord.
Step 2: An arm-lock chokehold applied around the neck is named mugging. The forearm and upper arm form a clamp across the front of the neck while the body is restrained, occluding the air passage and the carotids.
Step 3: Eliminating the others: a thrown and tightened cord defines garrotting; a death produced by sandwiching the neck between two bamboo poles tied at the ends defines bansdola; and since a correct term exists, None of the above is not chosen.
Step 4: The single feature of the elbow encircling the neck points only to mugging.
\[\boxed{\text{Mugging}}\]