Hi,
It seems that there is a relationship between the Celts and India ...although the sword shown by Sikh Soldier seems quite recent and some sort of reproduction... its roots may be historical.
http://northernway.org/school/onwarticles.html
And this from another source....
"....The Celts seem to have originated from an area around the Caspian Sea,(See also a theory displayed by # 730 below). Their eruption into the west came at much the same time as a similar migration into India and Persia. It is thought that the Celts and the Hindus shared a common ancestry in a race known as the Battle-Axe People, whose mark was a perforated stone battle-axe and whose home was in southern Russia; the language spoken by the Celts came from the same source as Sanskrit, the classical language of the Hindus. Thus the Celtic language is called Indo-European and it is not too far-fetched to see correspondences between the Indian deities and those of the Celts; and likenesses between the brahmins, the priest-astrologers of India, and the druids, the priest-astronomers of Europe - in fact, much has been written about the links between the two races. It is noticeable, for instance, that Celtic gods are depicted seated in a similar meditation posture to the Hindu deities, and that giant figures are carved on the hillsides of India as well as of Europe. ...."
http://www.isle-of-skye.org.uk/celti...a/celt_c3b.htm
So a possibillity that an early Indian sword should be mounted in a Celtic styled hilt is not so crazy ...afterall
Regards David