An international reserve asset created by the International Monetary Fund (IMF) to supplement the official reserves of member countries; it is not a currency but a claim on freely usable currencies of IMF members.
The IMF as issuer, the year 1969, the five-currency basket, and the 2016 addition of the renminbi are commonly tested international-economy facts.
The SDR is a reserve asset and unit of account, not a real currency you can spend directly; the basket has five currencies (the Indian rupee is not in it).
IMF reserve asset (1969); value from a five-currency basket (dollar, euro, renminbi, yen, pound); renminbi added 2016.