One of our readers in India, @cliffordanup let us know us that Cortana now includes more categories of interests. Well, I checked, and it's true. At this stage though, I'm not sure when this update sneaked in and which are the specific markets where the new list of categories has been introduced.
The Windows Phone 8.1 Update 1 brought Cortana to China and the UK in beta and to India, Australia, and Canada in alpha.
Full story from the WindowsCentral blog...