The Chera dynasty of Southern India has been the pioneer in the manufacturing of the ‘Ukku’, a mispronunciation of the ‘Wootz steel’. The forging process used in the making of this steel gave rise to the earliest known manmade carbon nanotubes. Thus Indian metalworkers were using nanotechnology at least 2500years before the West and exporting the same at least seven centuries ago, if not more. The swords have always been considered as a sign of valor and have been used as a defense weapon for ages. The Tamil Nadu police even today, decorate their ceremonial attire with swords.