The Thuggee Cult is a martial art cult organized around the worship of the Destroyer of Worlds, Lady Shiva.
Possessing a temple in Gotham City they keep a memorabilia wall of photos of her victories/victims.
When she arrived at Gotham for a death duel with her daughter, Cassandra Cain, Shiva visited the temple and slew the cult members within. This was seen as an honour by the cult members.
Later on she enacted the second phase of the death duel with her daughter within the temple’s main chamber and was defeated.