It asserted that the company's brands such as Arisia, Nakshatra, Asmi and Sangini, which has been targeting separate states according to consumer needs, has contributed to the growth.
As part of its aggressive marketing strategy, the DTC has signed a contract with the Brightest Circle Jewellery Private Ltd to hand over Nakshtra brand to later in 2008 and 'Asmi' in 2006.
With an Rs 6600 crore-diamond market, India has been leading in cutting and polishing industry.
DTC would look at bringing new brands after consistent research on customer need.