<h1>Reference rate publication sets official currency benchmarks and fixes the basis for SDR Rupee conversion.</h1> Publication of Reference Rates by the central bank sets the official exchange benchmarks for the US dollar and the Euro and, using those rates with cross currency middle quotes, derives exchange rates for other currencies such as the pound sterling and the yen; the announcement specifies that the SDR Rupee rate will be determined on the basis of the published Reference Rate.