The only thing I could find was in the annual report released in October 2013 page 12 with the following:
Diamonds (Bundlekhand, Bhandara,
There are three diamond projects in the
joint venture of IRL’s diamond projects with
a private Indian diamond company, Vajra
Diamond Mining Private Limited (Vajra).
The three diamond projects
are the
Bundelkhand, Bhandara and Dharwa Projects.