The official currency of Nepal is the Nepalese Rupee, issued and regulated by Nepal Rastra Bank, the country's central bank established in 1956. The Nepalese Rupee has historically been pegged to the Indian Rupee at a fixed exchange rate (currently 1 Indian Rupee equals 1.6 Nepalese Rupees), a monetary arrangement that reflects Nepal's close economic integration with India, its largest trading partner, but the peg does not make the two currencies identical; each is issued independently by its own central bank and Indian currency notes above a certain denomination are technically restricted in Nepal despite informal circulation. This is the correct answer because the Nepalese Rupee is the sole legal tender for domestic transactions within Nepal. The Bhutanese Ngultrum is incorrect because it is Bhutan's own currency, issued by the Royal Monetary Authority of Bhutan, and although the Ngultrum is itself pegged one-to-one with the Indian Rupee (a separate arrangement from Nepal's peg), it has no connection to Nepal's monetary system. The Indian Rupee is a strong distractor precisely because of the fixed exchange peg and because Indian currency circulates informally in parts of Nepal, but it is not Nepal's official currency of issue; India and Nepal remain separate monetary jurisdictions despite the peg. The Pakistani Rupee is incorrect and geographically distant, as Pakistan lies to the west of India with no currency link to Nepal at all, sharing only the historical root of the word 'rupee' derived from the Sanskrit 'rupya'. A frequent exam confusion is assuming that because a currency is called 'Rupee', it must be interchangeable with India's, but Nepal, Pakistan, Sri Lanka, Mauritius and others each issue their own distinct Rupee under separate central banks.
