Ind AS 21 requires estimating a spot exchange rate and enhanced disclosures when a currency is not exchangeable. Amendments to Ind AS 21 require assessing whether a currency is exchangeable at each measurement date and for each specified purpose; where a currency is not exchangeable, an entity must estimate a spot exchange rate at the measurement date to reflect the rate for an orderly exchange between market participants. Entities may use an observable exchange rate without adjustment or other estimation techniques, and must disclose the nature and financial effects, rates used, estimation process, and risks. The amendments apply prospectively from annual periods beginning on or after 1 April 2025 with no restatement of comparatives.