Summary
The RBI's currency printing arm, BRBNMPL, has invited global Expressions of Interest for polymer banknote substrates, its most concrete step toward plastic currency since the original 2009 proposal, with bids due August 18, 2026.
Polymer notes last 2.5-4 times longer than cotton-paper notes but cost 30-60% more to produce, with lower denominations like ₹10 and ₹20 likely to see the first rollout given their high replacement frequency. The move comes despite India's "currency demand paradox" — cash in circulation has grown past ₹41.68 lakh crore even as UPI processes over 24,000 crore transactions annually — raising questions about the economic case for large-scale polymer adoption amid volatile petrochemical prices.
WHY IT MATTERS FOR UPSC & STATE PCS
BRBNMPL's Expression of Interest, with bids due by August 18, 2026, marks the first serious administrative movement on polymer currency in over a decade after the original 2012 pilot in five cities was shelved. RBI Governor Sanjay Malhotra confirmed last month that polymer currency is again under active consideration, reviving a debate about whether investing in more durable physical cash makes sense at a moment when digital payments dominate retail transactions.
Standard News
Who Actually Needs Rs 10 and Rs 20 Notes to Last Longer
The aggregate story is UPI's triumph - 24,000 crore transactions, 85% of retail digital payments. But zoom into which notes the RBI is actually targeting for polymer substitution and the story changes completely: it's Rs 10 and Rs 20 notes, not the Rs 500 note that dominates value in circulation.
Who Is Still Handling These Notes Every Day Rs 10 and Rs 20
notes are the currency of the vegetable vendor, the auto fare, the tea stall, the informal daily-wage transaction - exactly the segment of the economy where UPI penetration remains thinnest, either because of poor rural digital connectivity or because small daily cash transactions don't route through a QR code.
These are also the notes that get handled most, get soiled fastest and cost the RBI disproportionately to keep replacing. The currency demand paradox isn't a mystery once you separate value from volume: Rs 500 notes dominate the value of currency in circulation, but Rs 10 and Rs 20 notes dominate the physical wear-and-tear cost, because they pass through the most hands in the informal economy that UPI hasn't fully reached.
The Real Trade-Off the RBI Is Weighing This is
why polymer makes narrow economic sense even in a UPI-dominated economy: it isn't a bet against digital payments, it's a bet on reducing the lifecycle cost of serving the cash-dependent segment that digital payments haven't yet absorbed.
But the mechanism has a real vulnerability - polymer substrate is derived from polypropylene and India imports roughly a fifth of its domestic polypropylene needs. West Asian volatility that raises crude prices flows directly into the cost of a note meant to save money, precisely for the lowest-income cash users this policy is meant to serve.
If petrochemical prices spike, the RBI's durability bet could turn into a cost bet that undermines its own logic, particularly for denominations already operating close to face value on production cost. The exam-relevant insight: the "digital versus cash" framing misses the actual question.
This isn't paper versus polymer as a binary choice - it's whether India can make its shrinking-but-still-essential cash economy, concentrated in the informal sector and low denominations, cheaper to serve without exposing that population to global petrochemical price risk.
Quick Facts
Key numbers & takeaways — revise these first
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Polymer banknotes last 2.5 to 4 times longer than cotton-paper notes but cost 30-60% more to manufacture.
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India's currency printing cost was Rs 4,875 crore in FY2025-26 and the country destroys 20-24 billion soiled notes annually under its Clean Note Policy.
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UPI accounted for 85% of retail digital payments in FY2025-26.
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Currency in circulation rose from about Rs 16-17 lakh crore a decade ago to over Rs 41 lakh crore in FY2025-26, even as the currency-to-GDP ratio has stayed above 11% since bottoming at 8.7% during 2016-17 demonetisation.
Connect the dots for your UPSC preparation.
Standard news covers the event. Log in to read our comprehensive analysis and uncover the hidden constitutional, structural, and ethical dimensions of this topic:
The specific reason Rs 10 and Rs 20 notes, not Rs 500 notes, are the RBI's actual target denomination
How India's one-fifth import dependency on polypropylene creates a hidden cost risk tied to West Asian crude volatility
What the 2012 pilot's failure reveals about why this attempt might succeed or fail differently
The full lifecycle cost comparison showing when polymer's higher upfront cost actually pays off
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