NABARD Grade A Current Affairs — 27 August 2026

Unified Payments Interface (UPI), launched in April 2016 by NPCI under RBI's oversight, completed a decade of operations in 2025. From a single-digit transaction count at inception, UPI now processes approximately 26 billion transactions monthly, accounting for nearly 80% of India's retail digital payments volume. UPI is operational in seven countries including Singapore, UAE, France, and Bhutan. The government maintains a zero Merchant Discount Rate (MDR) policy on UPI transactions, reimbursing banks through the PLI scheme.

UPI is an interoperable real-time payment system built on the Immediate Payment Service (IMPS) rails and developed by the National Payments Corporation of India (NPCI). It operates on a four-party model: the payer's bank (remitting PSP), the payee's bank (beneficiary PSP), NPCI as the switch, and the customer-facing app. Transactions are settled on a 24×7 basis, unlike traditional NEFT which follows batch settlement.

The zero-MDR policy, introduced from January 2020, means merchants pay nothing to accept UPI payments. Banks are compensated through a government-funded incentive scheme (earlier called PLI — Payment Infrastructure Development Fund and incentive scheme). This policy is central to financial inclusion but has raised sustainability concerns for payment service providers.

Regulatorily, NPCI operates under a framework authorised by RBI under the Payment and Settlement Systems (PSS) Act, 2007. The PSS Act is the primary statute governing payment systems in India, and the RBI is the designated authority.

For global interoperability, UPI has been connected to Singapore's PayNow via a bilateral linkage — a landmark real-time cross-border retail payment corridor. France's acceptance of UPI is significant as the first G7 country to do so. The UPI123Pay variant serves feature-phone users without internet, and UPI Lite enables offline small-value transactions up to ₹500 per transaction with a wallet limit of ₹2,000 — key thresholds for exams. These variants expand UPI's reach to the bottom of the pyramid, aligning with NABARD's financial inclusion mandate.

India's Unified Payments Interface processed over 18,000 crore transactions worth more than ₹246 lakh crore in FY 2024-25, cementing its position as the world's largest real-time payments platform. Launched in 2016 by NPCI under RBI oversight, UPI now handles roughly 46% of global real-time payment transactions. The zero Merchant Discount Rate policy, maintained since January 2020, ensures no transaction cost for merchants or consumers, with government compensating banks through an incentive scheme.

UPI is an interoperable, mobile-first payment system built on IMPS rails by the National Payments Corporation of India (NPCI). Unlike card networks or wallets, UPI uses a Virtual Payment Address (VPA) to mask actual account details, enabling push and pull transactions in real time, 24×7, including on bank holidays.

The architecture rests on four pillars: the payer's bank (issuing PSP), the payee's bank (acquiring PSP), NPCI as the central switch, and the UPI app (which can be third-party, like PhonePe or Google Pay, or bank-owned). Settlement happens on a T+0 basis through RBI's RTGS/NEFT infrastructure in the background.

The zero-MDR regime (effective 1 January 2020) is a policy choice to drive adoption at the cost of bank revenue; NPCI and banks are compensated through the government's incentive scheme budgeted annually. This distinguishes UPI from credit/debit card MDR, which still applies.

UPI's global expansion — via bilateral linkages with Singapore (PayNow), UAE, France, Sri Lanka, Mauritius, Bhutan, and Nepal — tests both SEBI and RBI aspirants on cross-border payment architecture. The RuPay–UPI stack is also being promoted under the G20 agenda for interoperable cross-border retail payments.

For regulators, key concerns are fraud risk management (the 'UPI Lite' offline feature and TPAP liability), system concentration risk (two apps command ~80% market share), and data localisation norms applicable to payment system operators.