CBDC & Digital Rupee: RBI’s Vision for Digital Currency Explained for UPSC

A Central Bank Digital Currency (CBDC) is the digital form of a country’s fiat currency, issued and backed by the central bank. India’s CBDC is called the e-Rupee (e₹), issued by the RBI.

The critical distinction: e-Rupee is money. UPI moves money. Cryptocurrency is neither legal tender nor backed by any sovereign authority. These three concepts are confused constantly in UPSC answers, and that confusion costs marks.

RBI introduced e-Rupee through a phased pilot approach. The wholesale pilot launched on November 1, 2022, for settlement of government securities transactions. The retail pilot launched on December 1, 2022, initially with four banks — SBI, ICICI Bank, Yes Bank, and IDFC First Bank — later expanded to include HDFC Bank, Bank of Baroda, Union Bank of India, and others across 26 cities.

How e-Rupee Works

The retail e-Rupee operates through a two-tier model:

1. Tier 1: RBI issues digital tokens to participating banks
2. Tier 2: Banks distribute these tokens to customers through dedicated wallet apps

Users download their bank's e-Rupee wallet app, load tokens from their bank account, and transact using QR codes. The experience looks similar to UPI, but the underlying mechanism is fundamentally different.

Token-based vs Account-based:

RBI is piloting a token-based model for retail e-Rupee. Each digital token is a specific denomination (like a physical currency note with a serial number). Possession of the token equals ownership. This is closer to how cash works — the person holding the note owns it.

An account-based model would work like bank accounts, requiring identity verification for every transaction. RBI has indicated it may use a hybrid approach: token-based for small transactions (privacy preserved) and account-based for large transactions (identity verified).

CBDC vs UPI vs Cryptocurrency: The Comparison

Common student mistake: Writing that CBDC will replace UPI. It will not. CBDC and UPI serve different purposes. UPI is a massively successful payment infrastructure processing 14+ billion transactions per month. CBDC adds a new form of digital money to the system. They will coexist.

Why Does India Need a CBDC?

1. Reducing Currency Management Costs

India spent Rs 4,984 crore in 2021-22 on printing, distributing, storing, and destroying physical currency. Currency in circulation stood at approximately Rs 35 lakh crore (March 2025). A shift toward digital currency, even partially, reduces these logistical costs.

2. Programmable Money

This is the transformative potential. CBDC can be programmed with conditions:

• Government subsidy tokens that can only be spent on fertilizers, not diverted
• Expiry dates on stimulus payments (forcing spending within a timeframe)
• Automatic tax deduction at the point of transaction
• Smart contracts for trade finance

No existing payment system offers this programmability. GST collection, for instance, could become more efficient with programmable payment rails.

3. Offline Transactions

India has 25,000+ villages with unreliable internet. Physical cash works everywhere. UPI does not. A CBDC with offline capability (using near-field communication or Bluetooth) could bring digital payments to areas where UPI cannot reach.

RBI is testing offline functionality for small-value transactions (below Rs 500) using secure hardware on phones.

4. Cross-Border Payments

International remittances and trade settlements are slow (2-5 days) and expensive (3-7% fees). CBDC interoperability between countries could enable near-instant, low-cost cross-border payments.

India is exploring CBDC-based cross-border settlement with the UAE (building on the India-UAE CEPA). The BIS (Bank for International Settlements) mBridge project connects CBDCs of multiple countries for trade settlement — China, UAE, Thailand, and Hong Kong are participants. India is an observer.

Concerns and Challenges

Privacy

If RBI issues and tracks every digital token, it has unprecedented visibility into every transaction. This is the fundamental tension: a central bank that can monitor all financial activity. RBI has acknowledged this concern and proposed "managed anonymity" — small transactions would be anonymous (like cash), larger ones would be traceable (like bank transfers).

But the technical and legal frameworks for this managed anonymity are still being developed. There is no legislation defining CBDC privacy rights.

Bank Disintermediation

If citizens hold e-Rupee directly from RBI instead of keeping deposits in banks, it could trigger deposit outflows from commercial banks. Banks use deposits to fund loans. Fewer deposits means less credit creation, which hurts economic growth.

RBI's safeguard: limiting the amount of e-Rupee a person can hold (current pilot limits: Rs 10,000 in the wallet). This prevents large-scale deposit migration. But the limit may need to increase for CBDC to be practically useful.

Cybersecurity

A centralized digital currency system is a high-value target for cyberattacks. Unlike decentralized cryptocurrencies (where no single point of failure exists), a CBDC system's central ledger, if compromised, could affect the entire monetary system.

Adoption Challenge

The retail pilot has seen modest adoption. With UPI already dominant (400+ million users, 14+ billion monthly transactions), convincing users and merchants to adopt a parallel system is difficult. As of early 2026, e-Rupee retail transactions remain a tiny fraction of UPI volumes.

The Digital India infrastructure provides the backbone, but user behavior change is the harder problem.

Global CBDC Landscape

134 countries (representing 98% of global GDP) are exploring CBDCs. The landscape as of 2026:

China's e-CNY (Digital Yuan): The most advanced large-economy CBDC. Piloted since 2020 across 26 cities. Cumulative transactions exceeded 7 trillion yuan ($1 trillion) by 2025. Integrated with WeChat and Alipay. Used in government salary payments and public transit. However, adoption remains a fraction of total payment volumes.

EU's Digital Euro: European Central Bank completed a two-year investigation phase (2023). Preparation phase launched in November 2023. Legislation proposed. Expected launch: 2028 at earliest. Privacy has been the biggest political hurdle.

Nigeria's eNaira: Launched October 2021 — one of the first retail CBDCs globally. Adoption has been poor. Less than 2% of the population uses it despite a forced push (Nigeria restricted ATM cash withdrawals to drive adoption). The eNaira is a cautionary tale about launching CBDC without user demand.

Bahamas' Sand Dollar: Launched 2020. Small economy, limited impact but useful as a real-world case study.

UK, Japan, South Korea: All in advanced research or pilot stages.

India's Cryptocurrency Regulation

India has not banned cryptocurrency outright, but it has made it economically painful to trade:

• 30% tax on crypto gains (no deduction for losses, no set-off against other income) — introduced in Budget 2022
• 1% TDS on every crypto transaction above Rs 10,000
• No offset: If you lose Rs 5 lakh on Bitcoin and gain Rs 3 lakh on Ethereum, you pay tax on Rs 3 lakh. The Rs 5 lakh loss cannot be set off
• GST: 18% GST on crypto exchange fees; debate on whether 28% GST should apply to crypto transactions themselves

RBI has consistently opposed private cryptocurrencies, calling them a threat to macroeconomic and financial stability. RBI Governor has compared crypto to Ponzi schemes.

The Cryptocurrency Bill (to regulate or ban private crypto) has been listed multiple times but never introduced in Parliament. The regulatory uncertainty continues.

For deeper analysis of crypto's monetary implications, see cryptocurrency in India.

CBDC and the Future of Money

The banking system will not be disrupted overnight by CBDC. The realistic trajectory:

Short-term (2026-2028): Pilot expansion, interbank settlement using wholesale CBDC, limited retail adoption in government payments (subsidies, scholarships).

Medium-term (2028-2032): Offline capability matured, cross-border CBDC corridors operational, programmable money used for targeted subsidies. Integration with fiscal policy instruments.

Long-term (2032+): Significant share of low-value transactions on CBDC. Cash remains for the foreseeable future (RBI has confirmed it will not eliminate physical currency).

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