Unified Payments Interface (UPI) is a revolutionary payment system launched in 2016 by the National Payments Corporation of India (NPCI).
It has significantly transformed India’s digital payment ecosystem by enabling instant, real-time money transfers between bank accounts using a mobile application.
Institutional Background
NPCI (National Payments Corporation of India):
Set up in 2008 by the Reserve Bank of India (RBI) and Indian Banks’ Association (IBA).
Registered under Section 8 of the Companies Act, 2013 as a “not-for-profit” organization.
Operates under the provisions of the Payment and Settlement Systems Act, 2007.
NPCI is the umbrella organization for retail payments in India (e.g., RuPay, IMPS, AEPS, BHIM, FASTag, etc.).
How UPI Works
Merges multiple bank accounts into a single mobile application.
Enables seamless fund routing, merchant payments, utility bill payments, and peer-to-peer transfers.
Works 24x7, even on weekends and holidays.
Uses a Virtual Payment Address (VPA), removing the need to share sensitive banking information.
Salient Features of UPI
Immediate Fund Transfer: Real-time and instant, round-the-clock service.
Peer-to-Peer (P2P) and Peer-to-Merchant (P2M) payments supported.
Single-click 2-Factor Authentication ensures security and convenience.
Supports utility bills, school fees, EMIs, insurance, QR code payments, etc.
Interoperability: One UPI app can access multiple bank accounts.
Transaction Limit: RBI increased limit to ₹5 lakh (especially for education and healthcare sectors).
In-built grievance redressal system through app-based complaint registration.
Variants of UPI
UPI123Pay (Launched in March 2022)
Designed for feature phone users.
Key Technologies:
IVR (Interactive Voice Response)
Missed call-based payments
Sound-based proximity payments
App-based functionality (even on non-smartphones)
Available in 12 regional languages.
Transaction limit: ₹10,000 (increased from ₹5,000 by RBI)
UPI Lite (Launched in 2022)
Designed for small-value offline transactions without internet or UPI PIN.
Useful in low-connectivity areas.
Transaction limit: ₹1,000 (per transaction)
Wallet limit: ₹5,000 (previously ₹2,000)
Boosts financial inclusion and faster micro-payments.
Internationalisation of UPI
NPCI International Payments Limited (NIPL):
Set up in 2020 to expand UPI, RuPay, and other Indian digital payment systems globally.
UPI Global Acceptance:
Enables QR-based merchant payments abroad using UPI apps (e.g., Singapore, UAE, Bhutan, France, etc.)
Foreign Inward Remittance (FIR):
Allows Indians to receive international remittances directly into UPI-linked bank accounts.
NRI Inclusion:
UPI access extended to Non-Resident Indians (NRIs) holding NRE/NRO accounts.
OTP authentication via international mobile numbers enabled.
UPI One World:
Enables foreign tourists in India to make UPI payments to merchants and vendors.
Pilot launched with countries like Singapore during G20.
UPI in Numbers (As of 2025)
Over 12 billion transactions monthly.
Covers over 400 banks and third-party apps (Google Pay, PhonePe, Paytm, etc.)
Contributes over 50% of retail digital payments volume in India.
Lauded globally for being a public digital infrastructure success story.
Security Framework
Two-factor authentication (mobile number & UPI PIN)
No need to enter sensitive bank information for each transaction.
RBI and NPCI constantly upgrade security protocols.
Benefits of UPI
Financial Inclusion: Reaches rural and low-income populations.
Ease of Use:User-friendly interface, no need to remember IFSC or account numbers.
Cost-Effective:Zero charges for most UPI-based transactions.
Boost to Digital India and cashless economy goals.
Challenges
Cyber-security Risks: Phishing, fraud, and scams increasing.
Internet Dependency: Still a hurdle in remote areas.
Bank Downtimes:Can impact real-time payments.
Scalability Concerns:Need for robust infrastructure to handle growing volume.