Aki Kiti

The objective is to make the opponent fall on knee or touch ground with hands or step outside of playing zone.

Aki Kiti originated as a sport among the headhunter Sümi Naga tribe (now Christian converts) of Nagaland in the mountainous Northeast India.

Originally, it was intended solely as a sporting event that served the purpose of righting wrongs, restoring honour, or "settling scores" between tribes and tribesmen without resorting to violence.

[1] Aki Kiti is described in the book The Sema Nagas by anthropologist John Henry Hutton, published in 1922.

[4][2] In 2008, it was featured in the fourth episode in Series 1 of BBC Three reality TV show Last Man Standing.