The US dollar is issued by the Federal Reserve System. The Indian rupee is issued by the Reserve Bank of India, whose own statement of function is to issue, exchange and destroy currency notes and to put into circulation coins minted by the Government of India, with the stated objective of giving the public an adequate quantity of currency in good quality. The RBI’s preamble sets its wider job as regulating the issue of banknotes, operating the currency and credit system, and maintaining price stability while keeping the objective of growth in mind. In ISO 4217 the rupee is INR, numeric 356, with two minor units — the paisa — matching the dollar’s two.

This pair is, above all, a remittance corridor. The Reserve Bank of India’s sixth Remittances Survey reported that India’s remittances more than doubled from US$55.6 billion in 2010-11 to US$118.7 billion in 2023-24, and that India has remained the top recipient country since 2008, with its share of world remittances rising from around 11% in 2001 to about 14% in 2024. The United States is the single largest source: the RBI put the US share of India’s total remittances at 27.7% in 2023-24, up from 23.4% in 2020-21, ahead of the six GCC countries at 38% combined. India’s Ministry of External Affairs recorded 5,693,609 overseas Indians in the United States as of January 2025. Trading volume is a smaller story here — the BIS put USD/INR at 1.9% of global turnover in April 2025 — which is the point: this pair moves money for households more than it moves it for markets.

The Reserve Bank of India describes its own policy in terms that matter for reading this pair: its policy "has been to allow it to be determined by market forces", and it "intervenes only to maintain orderly market conditions by containing excessive volatility in the exchange rate, without reference to any pre-determined level or band". There is no target to trade against. On the flow side, the RBI notes that remittances have hovered around 3% of GDP since 2000 and have generally exceeded India’s gross inward foreign direct investment since the start of the century — a standing, relatively steady source of foreign currency supply that behaves differently from portfolio flows, which the RBI describes as volatile. Rate differentials, the current account and the dollar’s broad strength do the rest.

Cost is the practical question in this corridor, and it is measurable. The World Bank’s Remittance Prices Worldwide put the global average cost of sending remittances at 6.36% in the third quarter of 2025, and the cost of sending to India at 5.30%; the United States as a sending country came in at 5.04%. The World Bank also separates that total into two parts — a transfer fee and a foreign exchange margin — and states plainly that "an important portion of the remittance cost is the exchange rate spread, which is not quoted in the transfer fee". A zero-fee offer is not a zero-cost offer. Note too that the RBI stopped publishing its own USD/INR Reference Rate after 9 July 2018; computation and dissemination passed to Financial Benchmarks India Ltd from 10 July 2018, on every weekday excluding Saturdays, Sundays and Mumbai bank holidays.