In April , India announced India VIX. Obviously I have not kept track of this event for various reasons. However today when I browsed through the NSE site, I found that NSE has outlined the methodology for India VIX. It is exactly same as CBOE. There was one thing which was very disheartening, the document which outlies the procedure is a Ctrl C+ Ctrl V of the CBOE documents with author putting no effort whatsoever in taking time out in at least typing the formulae in Latex.