<h1>Reference rate publication anchors exchange calculations for other currencies and determines the SDR Rupee conversion on the reported date.</h1> Publication of a reference rate for the US Dollar establishes the official benchmark used to compute cross currency middle rates and the resultant Rupee quotations for the euro, pound sterling and Japanese yen; the notice compares the current USD reference with the prior day and states that the SDR Rupee rate will be based on that reference rate.