Simple reason - dilute/diversify your USD holdings. Its pretty well known that the Chinese and Indian Banks hold one of the largest USD reserves in the world a

Simple reason - dilute/diversify your USD holdings. Its pretty well known that the Chinese and Indian Banks hold one of the largest USD reserves in the world and have been responsible for artificially inflating the price of the USD , this has been going on for years. China last year or probably earlier this year said "We would like another currency other than the USD to be the World's Reserve Currency".