Topic
Manja Line
good, bad, ugly, and potential practical applications of the like ...
Sept. 8, 2019     Dave Santos

Kites are relatively bird-friendly, with the exception of Fighter Kites with Manja cutting line. Admirable bird rescue effort-

Vadodara: 21 birds died in kite flying-related accident | Mantavya News
Sept. 8, 2019      Joe Faust

Manja Line
good, bad, ugly, and potential practical applications of the like ...

Brief start:
Good:  games, entertainment, fighting kites, cultural celebrations
Bad: injury to property
Ugly: death by slit throats
Potential practical applications of the like: Cutting stone and wood by kite systems that pull abrasive lines.
Sept. 8, 2019       Dave Santos

There are modern kite fight sport variations based on tagging the opponent's line without cutting, scored by a referee. The kites are both the expendable kind, soon spent, and fine permanent carbon-sparred and performance polymer construction.

Manja-style cutting line is theoretically fair self-defense against kite aggression, either by passive barrage or active counter-attack.