A kara is an Indian bracelet usually made of iron or steel which was originally worn by Sikhs as an article of their religious devotion. In time, this symbolism of unyielding commitment to a cause came to appeal to other Indians regardless of their faith, and it remains today a popular accessory throughout northwestern India.
Notwithstanding this, the meaning behind the kara resonated with the Indian Brotherhood of Assassins, and it was commonly utilized by those among them as arm protectors. Despite their simple design, their function was versatile, and the Indian Assassins employed them not just for defense, but offense, using them much like brass knuckles in hand-to-hand combat.
After her courtship with Jayadeep Mir and her subsequent move to India, British Assassin Evie Frye also adopted the karas. They served as her principal close combat weapon in 1888, when she returned to London to stop Jack the Ripper's Autumn of Terror.