Current Affairs
RBI's forex playbook, decoded: FCNR(B), reserves, and $104 oil
Why RBI opened a special $143.6 billion forex window, what record reserves insure against at $104 oil, and how to read a Bulletin like an examiner.
RBI's September 2026 Bulletin contained two numbers that aspirants will memorise and few will understand: a record $765.9 billion in forex reserves and a $143.596 billion mobilisation through the special FCNR(B) window. Add Brent crude at $104.32 with the Strait of Hormuz shut, and you have the complete short story of India's external sector right now. Here is the explainer.
What forex reserves actually insure against
Reserves are not a trophy; they are insurance. India's $765.9 billion (as of 18 September) covers roughly a year of imports and, more importantly, gives the RBI ammunition to smooth disorderly moves in the rupee. The four components: foreign currency assets (the bulk), gold, SDRs, and the reserve tranche position at the IMF. When commentators say reserves are at a record, the exam-relevant question is always: what risk is being insured? Right now the answer is crude at $104 and a closed Hormuz, through which about a fifth of the world's petroleum flows.
FCNR(B): why RBI opens special windows
FCNR(B) stands for Foreign Currency Non-Resident (Banks) deposits: dollar (or euro, pound, yen) deposits that NRIs hold with Indian banks, with no exchange-rate risk to the depositor. In normal times they trickle in. In 2026, RBI opened a special window (now closed, 31 August) that pulled in $143.596 billion across FCNR(B), overseas foreign currency borrowings and ECBs.
Why? When the rupee faces pressure, from expensive crude widening the trade deficit to FPIs selling, dollar inflows through this channel do two jobs at once: they add to reserves and they reduce the RBI's need to sell dollars defending the currency. It is a classic crisis-playbook move; RBI ran a famous version in 2013 during the taper tantrum. Students should learn the pattern, not just the number: pressure on the rupee leads to special windows leads to reserve accretion.
Reading the Bulletin like an examiner
The Bulletin's other signals complete the picture. Q1 growth at 7.8 percent with CPI at 4.8 percent in August is the Goldilocks zone the RBI wants: strong growth, inflation near target. The repo rate at 5.25 percent with a "neutral" stance means the central bank is neither stimulating nor restraining. The private capex pipeline of Rs 3.2 lakh crore for FY27 matters because private investment, not government spending, is what makes growth durable. And the flagged risks, West Asia crude, FPI outflows, food prices, are the three variables that could break the Goldilocks story.
How to use this in the exam
Prelims: FCNR(B) expansion and purpose, the four reserve components, what the repo rate and "neutral" stance mean. Mains (GS-III): connect the chain: Hormuz closure to crude to CPI to CAD to rupee to RBI's forex toolkit. That single causal chain can anchor an entire answer on external-sector management.
