Really? I've always thought that was the 'legend' of Katars....
Off to google it! lol
Edit:
well, there are lots of pages thrown up in a search, good old never wrong

wiki says:
As the weapon spread throughout India it became something of a status symbol, much like the Southeast Asian kris. Among the Rajputs and Mughals, princes and nobles were often portrayed wearing a katara at their side. This was not only a precaution for self-defense, but it was also meant to show their wealth and position. Upper-class Mughals would even hunt tigers with katara. For a hunter to kill a tiger with such a short-range weapon was considered the surest sign of bravery and martial skill.