Analysis of information sources in references of the Wikipedia article "ரூபாய்" in Tamil language version.
... The Indian rupee was the principal currency until 1959, when it was replaced by a special gulf rupee to halt gold smuggling into India ...
rū'pya 10805 rū'pya 'beautiful, bearing a stamp' ; 'silver'
rūpá 10803 'form, beauty'