Foreign exchange reserves

Also called: Forex reserves · Topic: Balance of Payments and Exchange Rates · NCERT: Class 11, Ch 3 "Liberalisation, Privatisation and Globalisation: An Appraisal"; Class 12, Ch 3 "Money and Banking"; Class 12, Ch 6 "Open Economy Macroeconomics"

Meaning

Foreign exchange reserves (forex reserves) are the external assets the RBI holds. They are foreign money and near-money that India can use to pay for imports, repay foreign debt or support the rupee.

• Formula: Forex reserves = Foreign currency assets (FCA) + Gold + SDRs + Reserve tranche position (RTP) with the IMF
• Why it matters: reserves are India's first protection against a currency crisis. In 1991, reserves could pay for only about two weeks of imports. That crisis forced the IMF loan, devaluation of the rupee and the LPG reforms.

Explanation

How reserves rise and fall

• The BoP (balance of payments) records all money flows between India and the rest of the world.

• Overall BoP balance = Current account balance + Capital account balance

• BoP surplus (more dollars come in than go out):

• the RBI buys the extra dollars → reserves rise

• BoP deficit (more dollars go out than come in):

• the RBI sells reserves to fill the gap → reserves fall

• So changes in official reserves are the "balancing item" of the BoP. They rise or fall by the same amount as the overall balance.

• Valuation changes also move reserves. FCA and gold are reported in US dollars. So when the euro, yen or gold price moves against the dollar, the dollar value of reserves changes even if the RBI buys or sells nothing.
• How the role of reserves changed over time:
• Bretton Woods (1944–1971): currencies were fixed to the dollar, and the dollar was fixed to gold. Central banks needed reserves to hold the fixed rate.
• Managed float today: the market sets the rupee's value. The RBI uses reserves only to calm excessive volatility (sudden, sharp swings). It does not defend any fixed level.

The four components (31 March 2026)

Component	Meaning in simple words	Value
Foreign currency assets (FCA)	Deposits and bonds in dollar, euro, pound and yen, mainly US Treasuries (US government bonds)	US$552.28 bn [2]
Gold	The RBI's gold, valued at market price	US$115.40 bn [2]
SDRs (Special Drawing Rights)	The IMF's own reserve asset, based on a basket of five currencies and allotted to member countries	US$18.62 bn [2]
Reserve tranche position (RTP)	The part of India's IMF quota paid in hard currency. India can draw it at any time, with no conditions.	US$4.81 bn [2]
Total		US$691.11 bn [2]

• Worked example (share of each part):
• FCA share = 552.28 ÷ 691.11 ≈ 80%

• Gold share = 115.40 ÷ 691.11 ≈ 16.7% (31 March 2026) [2]

• Order by size: FCA > Gold > SDR > RTP.

Why reserves are held

• To pay for BoP gaps. Class 11 NCERT says reserves are kept "to import petroleum and other important items".
• To intervene in the forex market.
• When the rupee falls too fast, the RBI sells dollars.

• When the rupee rises too fast, the RBI buys dollars.

• As insurance against a sudden stop. A sudden stop is when foreign money suddenly stops coming in or rushes out. Reserves pay the bills until things settle.

• For market confidence. Large reserves tell investors and rating agencies that India can always pay its foreign debt. This lowers India's borrowing cost.

How much is "enough"? Adequacy measures

• (a) Import cover
• Import cover (months) = Forex reserves ÷ Average monthly imports
• The old rule of thumb was 3 months.

• Worked example: reserves of US$690 bn ÷ imports of US$64 bn a month ≈ 10.8 months.

• (b) Greenspan-Guidotti rule

• Reserves should be at least 100% of short-term debt (foreign debt that must be repaid within one year).
• If they are, India can repay a full year of maturing debt even if no new foreign loans come in.

• Worked example: if short-term debt ÷ reserves = 21.9%, then reserves ÷ short-term debt = 1 ÷ 0.219 ≈ 457%. This is far above the 100% rule.

• (c) Volatile capital flows to reserves

• Volatile capital flows = foreign portfolio investment (FPI, money in shares and bonds) + short-term debt. This money can leave quickly.

• When the ratio rises, reserves cover less of the money that could suddenly leave.

• (d) IMF ARA metric (Assessing Reserve Adequacy)

• A weighted mix of four risks: exports (export earnings can fall), broad money (residents may move savings abroad), short-term debt and other liabilities (such as portfolio holdings).
• The usual comfort range is 100–150% of the metric.

Costs of holding reserves

• Sterilisation cost. Sterilisation means cancelling the effect of forex buying on the rupee money supply.
• The RBI buys dollars and pays in new rupees → more money in the system → risk of inflation.
• To prevent this, the RBI absorbs the extra rupees through OMOs (open market operations, selling government bonds to banks) or MSS bonds (Market Stabilisation Scheme securities, issued only to absorb extra liquidity).

• Worked example: the RBI buys US$1 bn at ₹85/$ → ₹8,500 crore enters the banks. It then sells ₹8,500 crore of MSS bonds at 6.5% → yearly interest cost ≈ ₹552 crore.

• Negative carry. This is the gap between what reserves earn and what India pays on its own borrowing.

• Worked example: US$100 bn is held in US Treasuries earning 4%. India's own borrowing costs about 7%. The 3% gap on US$100 bn = US$3 bn a year in lost income.

In India

• Who manages reserves: the RBI. It reports them in its Weekly Statistical Supplement and in its Half-Yearly Report on Management of Foreign Exchange Reserves.
• Latest level: US$691.11 bn (31 March 2026) [2]. This is down from US$700.09 bn at end-September 2025 [2] and from a peak of about US$705 bn in September 2024.

• The fall came as the RBI sold dollars to defend the rupee. Valuation changes also played a part.

• Adequacy (latest):

• Import cover: 10.8 months at end-December 2025, down from 11.3 months at end-September 2025 [2]. In 2021 it was more than 18 months [7].
• Short-term debt ÷ reserves: 21.9% at end-December 2025, up from 19.7% at end-September 2025 [2].

• Volatile capital flows ÷ reserves: 69.1% at end-December 2025, up from 66.1% at end-September 2025 [2].

• Net forward position: US$103.06 bn (31 March 2026) [2].

• A forward is a contract to buy or sell dollars on a future date.

• Headline reserves do not show these future commitments. So analysts also look at the forward book to judge how much of the reserves the RBI can really use.

• Gold: 880.52 tonnes (31 March 2026) [2].

• 680.05 tonnes are held in India [2].
• 197.67 tonnes are held with the Bank of England and the BIS (Bank for International Settlements) [2].
• About 100 tonnes were brought back from the Bank of England in 2024.
• In November 2009 the RBI bought 200 tonnes from the IMF [8]. Before that, its holding was only about 397.5 tonnes [8].

• Why hold gold: it protects against a fall in the dollar's value and against sanctions risk. Gold kept at home cannot be frozen by a foreign government.

• How the RBI intervenes:

• Spot: it sells dollars to banks and takes back rupees, so the rupee rises or falls less.
• Forward: it promises to buy or sell dollars later. This steadies expectations without using reserves right away.

• USD/INR buy-sell swap: it buys dollars now and sells them back later. This adds rupee liquidity now and builds forward cover. A sell-buy swap does the reverse.

• Lines of defence beyond own reserves:

• India-Japan Bilateral Swap Arrangement (BSA): US$75 bn, raised from US$50 bn and in force since 28 February 2019 [3]. It was renewed in March 2022 [4].
• SAARC Currency Swap Framework, where India is the provider. The 2024-27 framework was announced on 27 June 2024 and added an INR Swap Window [6].
  • Bhutan's central bank rolled over ₹15 billion (26 February 2026) and drew ₹25 billion more (23 March 2026) [2].
  • The Maldives Monetary Authority rolled over US$400 mn (23 October 2025) [2].

• The IMF, as lender of last resort (as in 1991).

• 2013 taper tantrum:

• The US Fed hinted it would slow its bond purchases → foreign portfolio investors pulled money out of emerging markets → the rupee fell to about ₹68.8/$ (August 2013).
• India's response was an FCNR(B) swap window, announced on 6 September 2013, with a fixed swap cost of 3.5% a year [5]. FCNR(B) deposits are foreign-currency deposits that NRIs hold in Indian banks. The window raised about US$34 bn.

Don't confuse with

• Reserve tranche position vs an IMF loan: the reserve tranche is India's own money at the IMF. It is counted in reserves and can be drawn without conditions. An IMF loan is borrowed money that comes with conditions, as in 1991.
• Forex reserves vs current account balance: the current account records trade, services and remittance flows. Reserves change only with the overall BoP balance (current account + capital account). A country can have a current account deficit and still add to reserves if capital inflows are larger.
• Headline reserves vs usable reserves: headline reserves (US$691.11 bn, March 2026 [2]) do not subtract the net forward position (US$103.06 bn [2]), which is a promise to deliver dollars later.
• MSS bonds vs normal government borrowing: MSS bonds are issued only to absorb extra liquidity (sterilisation). They are not issued to fund government spending.

Prelims Hooks

• The four components, by size: FCA > Gold > SDR > Reserve Tranche Position (31 March 2026) [2]. Total: US$691.11 bn [2].
• Import cover = reserves ÷ average monthly imports. It was 10.8 months at end-December 2025 [2]. The old rule of thumb was 3 months. In 1991 it was about 2 weeks.
• Greenspan-Guidotti rule: reserves should be at least 100% of short-term debt (debt due within one year).
• The RBI held 880.52 tonnes of gold (March 2026), with 680.05 tonnes kept in India [2]. Gold held abroad is with the Bank of England and the BIS, not the US Fed.
• The India-Japan BSA is US$75 bn, raised from US$50 bn and in force since 28 February 2019 [3]. Under the SAARC swap framework, India is the lender, not a borrower [6].
• Fragile Five (2013): India, Brazil, Indonesia, Turkey and South Africa. Trap: China and Russia were not in the list.

Mains Points

• Optimal reserves, not "the more the better":
• Large reserves protect India from sudden stops. The 2013 taper tantrum hit India hard, while larger reserves after 2022 let the RBI sell dollars without panic.
• But reserves have costs: negative carry of about 3% a year and the interest cost of sterilisation.

• Judge adequacy with the ARA metric and the short-term-debt ratio, not only import cover.

• Impossible trinity (trilemma):

• A country cannot have a fixed exchange rate, free capital flows and an independent monetary policy all at the same time.
• India manages this with a managed float, limits on some capital flows, and sterilisation.

• Heavy defence of the rupee drains reserves and tightens rupee liquidity. It can also clash with the inflation-targeting goal.

• Quality of flows and financial diplomacy:

• The volatile capital flows to reserves ratio rose to 69.1% (December 2025) [2]. This shows growing risk from FPI and short-term debt.
• Policy options: favour FDI (long-term investment in factories and firms) over FPI, deepen the rupee bond market, use the rupee more in trade, and bring gold home.
• SAARC swaps for Sri Lanka, the Maldives and Bhutan, along with the India-Japan BSA, build a regional safety net beyond the IMF. This supports the Neighbourhood First policy (GS-II link).

Related concepts

• Gold reserves
• Import cover
• Hot money
• Sudden stop
• Capital flight
• Currency swap arrangement

Read more

• Forex reserves, RBI intervention and capital-flow volatility