If you’d told someone five years ago that India, the country running the world’s largest real-time digital payments system, would actually spend 2026 talking seriously about plastic currency notes, they’d probably have laughed. UPI processed nearly Rs 30 trillion worth of transactions in a single month this May, with more than 700 banks, primarily Indian and large public institutions, private entities, rural banks and cooperative banks plugged into the network. Digital payments feel like the whole story of Indian money right now. And yet, quietly, the Reserve Bank of India (RBI) has been moving in the opposite direction that is towards ‘plastic.’
In mid-July, the RBI’s currency-printing arm, Bharatiya Reserve Bank Note Mudran Private Limited (BRBNMPL), floated a global tender inviting manufacturers to supply polymer substrate, which is the specialised plastic material used to print banknotes. The target defined was India’s Rs 10 and Rs 20 notes, the ones that live in our wallet the shortest and get replaced the most. In a written reply to the Lok Sabha, the finance ministry confirmed it had approved RBI’s proposal to issue one billion polymer notes each of these two denominations purely for field trials. By August, the Rajya Sabha got the same confirmation.
It must be noted that paper currency isn’t going anywhere. The officials were careful to add that polymer notes will run alongside cotton-paper ones, not replace them in the Indian economy, as these notes are being tested through a limited field trial. So why is a central bank betting on physical currency at the exact moment digital payments are consuming the world?
The economics of a torn Rs 10 note. The case for polymer is very unglamorous, but it’s really just about wear and tear. Small notes change hands constantly and every roadside vendor, auto ride and tea stall transaction touches them and cotton-paper currency simply can’t survive that kind of daily wear and tear. It gets soggy in the monsoon, greasy from handling and torn from being folded into pockets a hundred times over. The RBI’s own numbers tell the story of how it spent close to Rs 4,875 crore in the last financial year alone just on printing and replacing currency, a cost driven largely by its “Clean Note Policy”, which requires soiled and damaged notes to be pulled out of circulation.
Polymer notes, by most international estimates, last 2-6x longer than paper. They cost more to produce upfront. Global experience puts it at roughly double the price, but that cost evens out over a few years of reduced reprinting. Not a bad deal, I guess.
There’s a whole lot of security dividend too. Polymer allows for security features that paper struggles to hold cleanly, such as transparent windows, metallic numerals, shadow images, and iridescent patterns that are very hard to counterfeit.
If you look only at UPI, you’d assume physical cash is on its way out. But actually it isn’t. Currency in circulation hit a record Rs 41.6 trillion this financial year, growing at its fastest pace in 5 years, and at the very same time UPI transaction value jumped 21% and volumes rose 30%.
Both curves are climbing together and fairly not trading places.
Economists have an explanation for this. Digital payments are changing how India transacts day to day and not how it chooses to hold and store value. UPI has become the tool for frequent, small, everyday payments like chai, groceries and autos. Cash still does the job digital rails—meaning digital transfer of funds or online transfers—can’t; that is, it’s a precautionary reserve, which is a way people in the informal economy get paid and pay each other and simply a psychological comfort for a country where a huge share of economic activity still runs outside formal banking channels. Commonly, even as the absolute amount of cash in the economy keeps growing, the cash-to-GDP ratio has actually been falling from over 14% during the pandemic peak to around 11% now.
There I say: cash isn’t losing importance so much as growing more slowly than the economy around it.
There’s a geopolitical layer to this story that rarely gets attention. The BRBNMPL tender doesn’t read like a routine procurement document, but it reads like a supply-chain security policy. Bidders must secure clearance from the Indian government. No raw material can be sourced from China or Pakistan, full stop. Any bidder with operations in either country must wall those operations off entirely from the India contract. No employee who has worked in China or Pakistan in any capacity can be involved in fulfilling it. And whoever wins must guarantee that the specific polymer formulation made for Indian currency is never sold to any other country. Currency substrate, in normal language is now being treated the way India treats defence or telecom hardware as critical infrastructure that cannot depend on a rival neighbour.
This isn’t India’s first attempt at polymer notes, either. Back in 2012, the UPA Government approved an almost identical pilot where a billion Rs 10 polymer notes trialled across Kochi, Mysore, Jaipur, Shimla and Bhubaneswar, cities chosen deliberately for their different climates. The plan was never worked upon by the UPA and it remained only on paper. Later that plan reached the tendering stage by 2017 under the NDA Government before stalling over technical and procurement hurdles.
The 2026 push feels like a more of a disciplined second attempt that is broader in scope, tighter on security and backed by a decade of watching how other countries did it.
Indeed, we are late. However, it’s better late than never. Australia pioneered polymer currency back in 1988 and became the first country to fully convert its money supply to plastic. The Bank of England spent years consulting the public before switching its £5, £10, £20 and £50 notes to polymer between 2016 and 2021, eventually pulling paper £20 and £50 notes out of legal tender entirely. Canada moved to polymer starting in 2011. Roughly 60 countries now use polymer notes in some form. The pattern across all of them is the same, which highlights higher upfront cost, much longer note life and a durability upgrade that pays for itself.
What makes the RBI’s approach interesting isn’t that it’s choosing plastic over digital, but it’s that it’s refusing to choose at all. This isn’t a rush toward a cashless society that ignores how much of India still runs on cash. Nor is it a stubborn defence of paper currency that keeps bleeding money on printing and replacement. It’s a hedge which states that making the cash in India more durable and secure while letting UPI keep doing what it does best. For now, nothing changes for anyone carrying a Rs 10 or Rs 20 note. But it’s a quiet signal that India is preparing its currency for the next decade and not retiring it.
