The Programmable eRs: Where code meets currency

Introduction
The global financial landscape is on the edge of a sweeping transformation with the emergence of Central Bank Digital Currencies (CBDCs). While this concept of a digital form of fiat money issued by a central bank is gaining traction, a particularly innovative and fascinating feature is “programmability.”
The idea of programmability or Programmable CBDC is not just about making a digital version of the rupee, but it is a leap forward to make the Indian rupee dynamically intelligent which has the potential to transform the country’s huge economy, making the people to access the money differently, making subsidy drops efficient and much more. It’s about making a digital rupee that can act on its own based on preset rules. This will allow for unprecedented speed, accuracy and policy effectiveness.
How is it different to normal CBDC?
The main feature that makes a Programmable CBDC different from other types of money is that it can work automatically. Programmable money has directions built into its digital code, unlike the cash we carry around with us or the transactions in our bank accounts that don’t change. These rules say how, when and by whom the money can be used and viewed. They are usually powered by advanced smart contract technologies that are similar to those found in decentralized blockchain networks. Let us see few examples of Programmable CBDC:
Case 1: Let us Imagine that farmers receive government subsidies for fertilizers that can only be used at authorized fertilizer stores against purchase of fertilizers.
Case 2: Self-Help Groups receive micro-loans in instalments, with each payment depending on the successful completion of a specific operational or business milestone that is confirmed through digital channels. With this built-in intelligence, money goes from being a passive way to share goods and services to being an active part of the economy.
Case 3: Term Loan is getting disbursed to the borrower, but the money can be utilised only for transfer of funds to a business of specific activity.
These cases are very general, but the effects are far reaching. There are many strong reasons for India to look into Programmable CBDCs, including possible social and economic gains. The idea of better fiscal policy transfer is especially appealing to the governments. India’s social programs, which depend on Direct Benefit Transfers (DBT), could be run in a way that is both more efficient and clearer than ever before. Because the digital rupee can be programmed, it would be possible to precisely target recipients and make sure that funds are used for their intended goals as we have seen in the above cases. This would greatly reduce fraud, waste and administrative costs. The interest subsidy disbursement mechanism in Pradhan Mantri Vidyalaxmi (PM Vidyalaxmi) scheme is a noteworthy live use-case. Here, as per the announced mechanism; the interest subsidy amount will be credited directly to a student’s CBDC wallet which can be redeemed against payment to their education loan account or for direct payment to college or university. This makes sure that the subsidy does exactly what it’s supposed to do, which is to lower the cost of study & using safety valve to prevent possible subsidy leakage. The same type of subsidy disbursement mechanism can be implemented into the farm credits (3% Prompt Repayment Interest Subsidy), LPG subsidy etc. as well where it can be auto programmed to release of subsidy directly to beneficiary’s CBDC wallet once he repaid the loan amount to lender bank.
Meaning to Private Sector
What this means for India’s huge private industry is also very important. Programmable CBDCs could make complicated business deals easier, especially in India’s complicated supply lines. Smart contracts could make payments automatic if things are delivered, services are completed, or terms of the contract are met. This would cut down on disputes and speed up the settlement process in many fields, from manufacturing to e-commerce. This higher level of trust and speed could open up new business models and encourage new ideas, especially in areas that are ready to be automated. Various organisations are already testing programmable allowances for things like newspaper allowances, which shows how this technology can be used in real life in company finance.
To-date Developments
India’s path to CBDC has been planned out and done in stages. The RBI has successfully tested its wholesale CBDC (eRs) for interbank payments, with the goal of making the government securities market more efficient and cutting costs. The retail CBDC (eRs) is still under testing pilot stage with current use base around 60 Lakhs around 17 banks. These pilots are very important for getting information, figuring out how it will affect the financial system and improving the plan for design and delivery. Notably, non-bank payment system providers have also been given permission to offer e-wallets. This is done to take advantage of India’s high rate of mobile payments to improve reach in the last mile. UPI has made real-time payments more accessible to everyone, but the CBDC adds extra layers of security by having a central bank backing it, final settlement and most importantly, the ability to be programmed. This makes it possible for “purpose-based” transactions that UPI isn’t naturally built for. India’s dedication to interoperability and building on past wins rather than replacing them is shown by the fact that UPI QR codes can also be scanned to make e-payments.
Programmable CBDCs can be used for a number of different reasons. Some of these goals are to make payment systems more efficient, help underserved groups become more financially included by making digital payment options more available, encourage new ideas in financial services and protect monetary sovereignty in a world that is becoming more digital. Programmable CBDCs could give the RBI more precise control over how monetary policy is carried out. This would allow for tailored stimulus measures or better implementation of interest rate changes, for example, to directly address inflation in certain sectors. The case of cross-border CBDC pilots, both on a bilateral and a multilateral level, as a way to solve problems with speed, efficiency and openness in foreign transactions. This is especially important because India receives more money transfers than any other country. Programmable CBDCs could help millions of Indian families save a lot of money and time by reducing costs and delays. India’s desire to be a part of international CBDC projects, especially those run by the Bank for International Settlements (BIS) Innovation Hub, shows that it is dedicated to promoting global financial cooperation and innovation.
Tech behind it
Programmable CBDCs are based on a wide range of technologies, but most of the time they use strong centralized systems or distributed ledger technologies (DLT) like blockchain. The most important thing is being able to build logic and conditions right into the units of digital currency. This makes money, where each unit has its own set of rules. Open Application Programming Interfaces (APIs) connect to the RBI’s CBDC infrastructure to the rest of the banking ecosystem. This modular and interoperable design would let commercial banks, fintech companies and other payment service providers build new apps and services on top of the programmable digital rupee. This would create a thriving ecosystem of financial innovation while still letting the RBI keep full control and oversight. It is important for systems to be able to talk and do business with each other without any problems, no matter what technology they use.
Challenges
Though benefits are many, getting people to use Programmable CBDCs is a bit challenging because there are couple of problems that need to be solved.
a. Privacy: The most controversial problem is about privacy. Programmable CBDCs may be face roadblock because they can impose conditions and track transactions. However, this feature also raises valid concerns about the possibility of unprecedented government oversight and control over people’s financial activities. Strong protections are needed because of the scary thought of a society where every transaction is watched, every paisa can be controlled and people’s financial freedom might be limited. It is very hard to make a system that balances the need for financial integrity and measures to stop illegal finance with people’s basic right to privacy. It needs careful architectural choices, strong data protection rules that are in line with India’s Digital Personal Data Protection Act 2023 and constant public discussion. Privacy-enhancing technologies (PETs), like zero-knowledge proofs are being looked into as possible ways to make sure compliance without giving away private transaction information. This could lead to responsible programming.
b. Financial Stability: This is the fundamental problem with CBDC which might affect India’s current commercial banking industry and the country’s financial stability. Through CBDC, people could now have a direct liability to the central bank. If this isn’t carefully handled, it could cause a lot of deposits to move from commercial banks to the RBI, especially when the economy is uncertain. This “disintermediation” could make it harder for banks to lend money and distribute capital, which could make the financial system less stable. Because of this, the RBI is carefully planning CBDC models that could include holding limits, tiered interest rates or a two-tiered system where the RBI issues the digital rupee and private banks and other regulated entities handle services for customers and distribution. The goal of this approach is to make sure that CBDCs don’t get in the way of commercial banks’ important role in creating credit and managing money.
c. Operational Stability: For a digital currency to serve more than a billion people, operational stability and security are the most important things. A national digital currency system needs to be very strong so that it can work perfectly 24 hours a day, seven days a week, 365 days a year. It also needs to have security that can’t be broken, so that hacks and system failures can’t happen. In India, where there are a lot of people, the huge number of transactions in a retail CBDC system means that the infrastructure needs to be safe, scalable and able to handle shocks like power outages and natural disasters. Getting and keeping the public’s trust in such an important part of the country’s infrastructure is essential for it to be widely used and accepted. Importantly, the RBI is also looking into making the eRs work without internet i.e. making it offline, so it can be used by anyone, even if they don’t have access to the internet. This is very important for India’s large rural and digitally underserved populations, as it would make the system more like real cash.
Conclusion
Programmable CBDCs are a big change in the way money works. They provide people more control, openness and efficiency in financial transactions than ever before. It could change not only monetary systems but also the way the economy as a whole is run since, they could automate compliance, allow conditional payments, and deliver tailored fiscal policies. But the promise of programmability comes with a lot of difficult problems, such as privacy issues, cybersecurity dangers, operational complexity, legal difficulties and the possibility that the responsibilities of financial intermediaries will change.
As India figures out how to deal with the new digital world, Programmable CBDC stands out as a strong example of how money is changing. As a result, passive value storage has given way to active, intelligent capital that can run complex economic logic to meet specific policy goals and business needs. There are huge chances for efficiency, accuracy and new ideas, but there are also huge problems with privacy, financial stability and the ability to keep running smoothly. The RBI, GoI and the private sector are currently discussing, running rigorous tests and working together. All of these things will have a big impact on how this digital currency is designed and governed. In India, the ultimate success of Programmable CBDCs will depend on how well they keep their promises of innovation and efficiency while also upholding basic social values. This is to make sure that this major change in finance empowers individuals and strengthens the Indian economy in a digital world that is becoming more connected.
Authored by:
Master Abhishek
Chief Manager
Union Bank Knowledge Centre
Bengaluru

