Cash does not care what you buy. A ₹500 note can buy you rice, shoes or petrol. The note contains value. It does not contain instructions.
India's digital rupee can be different. On August 14, 2026, Chandigarh and Dadra & Nagar Haveli began distributing food-subsidy payments in the form of programmable central-bank digital currency to eligible recipients. The digital money can be spent at approved retailers for the food items it was allocated to buy.
It is not just cash on your phone. It is cash that knows the terms and conditions under which it can be spent.
UPI Is Not Digital Cash
This is important because India already has a payments infrastructure called UPI. When you make a UPI transaction, money moves from one bank account to another. Your bank balance is a liability of your commercial bank, and UPI is a messaging layer that instructs your banks on how to move money.
The digital rupee, or e₹, is different. It is central-bank money in digital form, and the Reserve Bank of India (RBI) issues it. The e₹ is programmable and encodes spending conditions directly into the money. RBI's white paper says that e₹ is "an electronic representation of India's legal tender" stored in a digital wallet.
While UPI moves commercial-bank money around, CBDC represents central-bank money. For regular retail transactions, the difference may not matter much, but programmability makes all the difference.
A Subsidy Can Carry Its Purpose
Let's say the government wants to give ₹2,000 to farmers for agricultural inputs. If the government transfers this money via a regular bank, the farmer gets ₹2,000 in bank money. He can spend it anywhere he wants.
That may not be what the government wants. The government may want the money to be spent only on agricultural inputs. It may also want to restrict the usage to a certain period of time or a particular category of farmers.
Programmable CBDC can do that. It can restrict the funds to be spent only on approved merchants or within a certain time or for a particular purpose. India has already experimented with programmable e-rupee for agriculture and food-subsidy applications and is looking to experiment more with welfare payments and other targeted subsidies. The subsidy can begin to behave like software.
This Could Reduce Leakage
The Indian government has many welfare schemes, and the money for these schemes passes through several government agencies, banks and other entities. With CBDC, the government can directly load money into citizens' digital wallets while also retaining a transaction trail. India's current food-subsidy programme is designed to test whether this technology can help reduce leakage.
The allure is understandable. The government can track the money, see who spent it, when and on what. Financial control becomes tighter.
Precision Can Become Restriction
The same feature starts to sound like a restriction. Let's say the government wants to give financial assistance to a family. The family has a choice of what it needs more: medicines or groceries. Should the government decide what the family should spend the money on?
Or say there is a government-approved list of pharmacies, but the nearest one is not on the list. Or the government programme simply rejects a legitimate transaction by mistake. Cash does not have these restrictions, but programmable cash does. The more a government can precisely target its spending, the more it has to decide what the spending can and cannot do. Technology does not solve a political problem; it makes a political problem easier to execute.
The Digital Rupee Still Needs a Reason to Exist
For regular peer-to-peer transactions, UPI is already a very good system. It is simple to use, intuitive and mostly free for the consumer. This puts India's CBDC in a strange position. A digital currency needs to find a reason to exist beyond just being digital.
This may be why RBI is looking to other applications of CBDC, including offline payments, programmable welfare, tokenised assets and cross-border transactions. The digital rupee needs to do something that UPI cannot do just as easily.
Adoption Has Not Been Automatic
India's e-rupee has had millions of users across various pilot programmes, but the actual value being transacted with the currency is minuscule compared to other payment methods.
As RBI's own annual report showed, the retail e-rupee circulation decreased from ₹1,016 crore to ₹771 crore in FY2025-26.
That is a telling statistic. A good product does not always capture a large market share right away. People adopt new technologies when they find them useful. The government can make the wallet, but people decide whether to open it.
Cross-Border Payments Could Be the Bigger Prize
In the future, CBDCs may be more interesting as settlement mechanisms between countries, rather than within countries. International transactions can involve correspondent banks, currency conversion, settlement delays and other complexities.
If central banks develop interoperable digital currencies, cross-border transactions could be faster and more efficient. RBI has partnered with Singapore and is considering other bilateral and multilateral CBDC collaborations.
That opens up an entirely different set of applications from what we have seen so far in India's food-subsidy pilots. The e-rupee can be more than just a government wallet. It can become a bridge between financial systems.
Money Has Become Programmable
For hundreds of years, money has existed in physical form. It has been minted, printed and, more recently, plastic-cardified. CBDC represents a different approach. The money itself can carry digital instructions. It can be programmed.
It has the potential to make subsidies more efficient, settlements faster and payments smarter. But it can also raise difficult questions about privacy, choice and control.
A ₹500 note cannot refuse to pay for your groceries. A programmable ₹500 token can potentially do just that. That may be the e-rupee's biggest advantage, and its biggest weakness.