As per the Income-tax Rules, 1962, the rate of exchange used for reporting all foreign income/assets should be the telegraphic transfer (TT) buying rate adopted by the State Bank of India (SBI). The SBI publishes these rates online for any given day. However, it does not maintain a historical archive of the rates. This website aims to independently maintain a historical archive of the official forex rates published daily by the SBI, from 1st January 2022 onwards. These rates are taken from the "card rates for transactions between Rs. 10 lacs and Rs. 20 lacs" section of the SBI publication, which it mentions are to be used as reference rates.