These kukri in India are known as Garhwali kukris after the Garhwallis who made them.. I should add kukris with silver rings on the hilt probably date back to WW1. And were probably purchased privately by & for Officers. But there a very different beast.
Silver ring grip kukri. from 4th Gr.
[see first picture below]
And one from the 10th GR.
[see second picture below]
The legitimate known ww2 versions of these have steel bolsters. Those made later have steel, brass or white metal bolsters.
All of the posts claiming these are WW2 Indian Army issue are from one person. The picture he uses most to justify his belief that they are ww2 Indian Army issue is this rather strangely blurry one.
[see third picture below]
Recently another kukri collector/researcher came across this less blurred copy.. & accurately named it. Its Gurkhas of 4th Indian Division keep watch on enemy positions in Alpi di Catenaia from high ground on Monte Castiglione, 29 July 1944. The complete picture is found here:
http://i7.photobucket.com/albums/y266/qwer3/gurkha%20amp%20kukri.jpg
Here are closer up views
[see pictures 4 and 5 below]
Interestingly this picture is from the collection of the Imperial War Museum in London. Copies can be found, enlarged & downloaded here..
http://www.iwm.org.uk/collections/item/object/205204677
It Shows beyond doubt the supposed Indian Army Ring Grip kukri. feature is actually a typical probably standard looking WW2 Regimental or Battalion issue kukri. {usualy made in group purchases from the many & varied kukri manufacturesrs in India & various engineering yards on occasion & perhaps on even rarer occasions Nepal. Also on a few documented occasions in times that demand outstripped supply made in house within the Gurkha units from available scrap metal.
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"The greatest obstacle to discovery is not ignorance - it is the illusion of knowledge."
Daniel J. Boorstinpiral