From 1790 till 1841, during the advent of British rule, Thug Behram managed to kill 931 people.
This was the period of East India Company in India and later on after the execution of Thug Behram manuscripts were written about his cold-blooded killings and his psychology by James Paton, then the East India Company officer.
Thug Behram used his cummerbund as a rumal to execute his killings, with a large medallion sewn into it. With practiced skill he could cast the rumal so as to cause the medallion to land at the Adam's apple of his victims, adding pressure to the throat when he strangled them.
Today the sinister Canova medallion, reputed to have been used in at least 65 murders, along with an aged hand-written document of 1831 supporting Behram's son Ali's continuance at an Indigo factory (Correspondence from the Quarter Master General's office regarding the Indigo Factory in the Sepoy Lines at Vellore) are preserved in a private museum.
He was executed in 1840 for killing more than 900 people.