3.4 Online Banking, UPI, Payment Gateways & EBPP

Online Banking

Online banking (Internet banking, net banking) is the conduct of banking transactions through a bank's website or mobile app, without visiting a branch.

Services available via net banking

Indian online-banking history

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Mobile Banking

Mobile banking = banking via smartphone app, distinct from net banking (browser-based).

Channels

Mobile banking vs Net banking

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UPI — Unified Payments Interface (the IPU modern-syllabus addition)

UPI is India's instant real-time payment system, developed by NPCI in 2016. It is the world's largest real-time payment system.

UPI Architecture — 4-party model

UPI transaction flow

1. Payer scans QR code or enters payee UPI ID
2. Payer's UPI app sends request to its PSP
3. PSP routes to NPCI switch
4. NPCI sends authorisation request to payer's bank
5. Payer's bank shows UPI PIN screen on app
6. Payer enters UPI PIN (4 or 6 digit)
7. Payer's bank debits account → sends success to NPCI
8. NPCI credits payee's bank account → sends success to payee's PSP
9. Both parties notified of success
10. All in < 5 seconds

UPI features

UPI growth

The growth curve is unprecedented in payments history. UPI processed roughly 100 million transactions a month in 2017, the year after launch — already a healthy start. By 2020, with the COVID-19-era contactless push, the system was at 2.7 billion per month. By 2022 it had jumped to 7 billion monthly. By 2024, UPI is settling 16+ billion transactions per month and accounts for ~80% of all digital retail payment volume in India — making it, by transaction count, the largest real-time payments system in the world.

UPI vs Cards vs NEFT

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Payment Gateway Integration

A payment gateway is the merchant-facing service that accepts payments on behalf of a merchant, processing them through banks and networks.

Payment gateway architecture

Two integration models

Gateway selection criteria

Top Indian payment gateways

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EBPP — Electronic Billing Presentment and Payment

EBPP is a system where bills are presented and paid electronically — replacing paper bills and physical payment.

Components of EBPP

EBPP models

EBPP runs in three operational models, often coexisting at the same biller. Biller-direct is the simplest: the customer goes to the biller's own website (BSES, MTNL, Adani Electricity) and pays from there. Consolidator (aggregator) is what most users actually use — one portal (BBPS via PhonePe, Paytm, or any UPI app) lets the user pay 24,000+ different billers from a single interface, while BBPS handles the routing and reconciliation behind the scenes. Bank-hosted EBPP lets the customer pay any of their pre-registered billers from the bank's own net-banking or mobile-banking screen — HDFC NetBanking BillPay, SBI YONO BillPay, and similar.

BBPS — Bharat Bill Payment System

BBPS is the unified bill-payment network — every UPI app integrates BBPS.

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Key Terms — Lesson 3.4

The terms below define the four core systems covered above — net/mobile banking, UPI, payment gateways, and EBPP — plus the supporting vocabulary used at every step.

Online Banking / Internet Banking / Net Banking — Banking through a bank's website (browser-based) without a branch visit. Standard services include balance enquiry, statement download, NEFT/RTGS/IMPS/UPI funds transfer, bill payment, investments (FD, MF, gold), loan management, insurance, tax payment, and standing instructions.

Mobile Banking — Banking through a smartphone app rather than a browser. Modern Indian banking apps (YONO SBI, HDFC, ICICI iMobile, Axis Mobile, Kotak 811) include everything net banking offers plus UPI, QR scanning, NFC payments, biometric login, and one-tap transfers. Mobile banking has overtaken net banking in usage in India since ~2019.

**USSD Banking (99#) — A menu-based mobile-banking option for feature phones* (and any phone), accessed by dialling *99# (or a bank-specific USSD code). USSD works without internet and supports balance enquiry, mini-statement, and UPI on feature phones (UPI 123Pay).

UPI (Unified Payments Interface) — India's instant, real-time, 24×7, free retail payment system, built by NPCI and launched in 2016. UPI lets users transfer money between any two Indian bank accounts using a Virtual Payment Address (VPA) — no need to share account number or IFSC. UPI processes ~16 billion transactions monthly (2024) and is the world's largest real-time payment system by volume.

VPA / UPI ID (Virtual Payment Address) — A user-friendly identifier — e.g., rohit@okhdfcbank or 9876543210@ybl — that maps to the user's bank account behind the scenes. The VPA is what the payer types or scans; the payee's actual account number stays hidden. The format is handle@psp.

PSP (Payment Service Provider) — The third-party application that exposes UPI to end users — PhonePe, Google Pay, Paytm, BHIM, WhatsApp Pay, Amazon Pay, CRED Pay. Each PSP must operate via a sponsor bank that holds the UPI licence; the PSP cannot access funds directly, only orchestrate the messaging.

Sponsor Bank — The bank that holds a PSP's UPI licence and acts as the regulated entity backing the PSP. PhonePe's sponsor bank is YES Bank / ICICI; Google Pay's is Axis / HDFC / ICICI / SBI; Paytm has been Paytm Payments Bank historically. RBI requires every PSP to operate through one or more sponsor banks.

UPI PIN — A 4 or 6-digit secret known only to the customer, used to authorise every UPI debit. Unlike a bank password, the UPI PIN is set on the customer's own device and never travels to the merchant or PSP — it is verified by the issuing bank.

UPI Lite — A simplified UPI tier (launched 2022) for small, fast payments under ₹500 — the user pre-loads up to ₹2,000 into an on-device wallet and can pay any UPI QR without entering a PIN. UPI Lite reduces UPI infrastructure load and speeds up tea-stall-style micropayments.

UPI 123Pay — UPI for feature phones (those without internet), via IVR call, missed-call, or app installation on supported feature phones. UPI 123Pay extends UPI's reach to the ~300 million Indians still on feature phones.

UPI on Credit Card — A 2022–2023 extension that lets RuPay credit cards be linked to a UPI ID, so users can scan a UPI QR and pay using their credit card limit instead of a bank account. India is the first country in the world to bridge credit cards into a national instant-payment rail.

UPI Autopay (e-Mandate) — A UPI-based recurring-debit authorisation for subscriptions, EMIs, SIPs, and insurance premiums — replacing the older paper NACH/ECS mandate. The user grants one-time permission; subsequent debits happen automatically up to the pre-defined cap and frequency.

Payment Gateway — The merchant-facing platform that accepts payments online and routes them through banks and networks. A gateway aggregates many payment methods (UPI, cards, wallets, net banking, EMI, COD) behind a single API. Razorpay, PayU, Cashfree, CCAvenue, Stripe, PhonePe Payment Gateway are the dominant Indian options.

Hosted vs Embedded Gateway Integration — The two main ways a merchant integrates a payment gateway. Hosted (redirect) sends the customer to the gateway's payment page (Razorpay's modal, Stripe Checkout) — easier to build and far lighter on PCI compliance, but the customer briefly sees the gateway's branding. Embedded / direct keeps the entire payment form on the merchant site (better UX, on-brand experience) but requires the merchant to handle card data, which raises the PCI compliance burden — most modern embedded flows mitigate this with JS SDKs + tokenisation.

Webhook (Payment Context) — A server-to-server callback the gateway sends to the merchant URL after key events — payment captured, payment failed, refund processed, chargeback raised. Webhooks are how a merchant's order-processing system finds out a payment went through without polling.

Settlement Timeline (T+0, T+1, T+2) — How quickly the gateway transfers funds to the merchant's bank account. T+0 means same-day settlement (rare, premium). T+1 means next-business-day. T+2 is standard for most Indian gateways. Faster settlement helps merchant cash flow; some gateways charge a small fee for T+0 / T+1 instant settlement.

Refund / Chargeback — A refund is initiated by the merchant — the merchant agrees the order should not go ahead and pushes the money back to the customer. A chargeback is initiated by the customer through their card issuer — the customer disputes a transaction (claims fraud, non-delivery, defective goods) and the network forces the merchant to either prove the transaction was legitimate or surrender the funds. High chargeback rates damage a merchant's reputation with gateways and may lead to higher MDR or suspension.

EBPP (Electronic Billing Presentment and Payment) — A system where bills are presented and paid electronically — replacing paper bills and physical payment. EBPP has four parties: biller (electricity company, telecom), aggregator/consolidator (BBPS, PhonePe Bill), customer, and bank or payment instrument. EBPP runs in three models: biller-direct, consolidator (aggregator), and bank-hosted.

BBPS (Bharat Bill Payment System) — NPCI's unified bill-payment network launched in 2017 that connects 24,000+ billers across electricity, gas, water, telecom, broadband, EMI, education, FASTag, and subscription categories. BBPS is the rail that every UPI app uses behind the scenes when you pay a bill in PhonePe, Paytm, GPay, or your bank's app.

Auto-Pay / Standing Instruction — A recurring payment authorisation: the customer authorises a fixed (or up-to-cap) amount to be debited automatically on a schedule. Implementations include NACH e-mandate (recurring debit), UPI Autopay, card recurring (RBI-regulated, capped at ₹15,000 per debit without additional auth as of late 2023), and bank standing instructions.

JAM Trinity — India's policy framework combining Jan Dhan (mass bank-account opening from 2014, 530+ million accounts opened), Aadhaar (unique-ID enrolment), and Mobile (telecom penetration). JAM is the foundation that made UPI, DBT (Direct Benefit Transfer), Aadhaar-enabled payments, and India's broader digital-payment expansion possible.

DBT (Direct Benefit Transfer) — Government subsidies and welfare payments transferred directly to the beneficiary's bank account, bypassing the leakage and corruption of intermediaries. DBT covers cooking-gas subsidy (PAHAL), PM-Kisan, scholarships, MNREGA wages, and many other schemes. DBT has saved the Indian exchequer an estimated ₹2.7 lakh crore since 2014.

Account Aggregator (AA) — A 2021 RBI/SEBI initiative that lets a customer consent to share their financial data (bank statements, MF holdings, insurance, GST returns) across institutions through an Account Aggregator licensed entity. AA powers data-driven lending, BNPL, wealth advisory — without the user having to email PDF statements.

ONDC (Open Network for Digital Commerce) — The 2022 Government of India open protocol for commerce. ONDC decouples buyer and seller apps so a buyer on PhonePe / Paytm / Magicpin can transact with a seller on JioMart / MyStore / ONDC Mitra. ONDC is to commerce what UPI is to payments.

EBPP benefits

For the biller, EBPP cuts the cost of paper bills and postage (a non-trivial saving for utilities mailing tens of millions of bills a month), accelerates payment collection (electronic payments clear in days, paper cheques took weeks), reduces bad debt because customers can set up auto-pay, raises customer-service quality through proactive SMS reminders, and creates a clean audit trail for compliance. For the customer, EBPP delivers convenience — no trip to the bill counter — combined with 24×7 availability, the option of auto-pay so they never miss a due date, SMS/email reminders before bills come due, and a single online history of every bill they have ever paid.

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Indian Banking Innovations (added context)

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Study deep

1. UPI is the most-copied payment system in the world. Singapore (PayNow), Brazil (PIX), UAE (Aani), France (Lyf) have all built UPI-style systems. NPCI International (NIPL) directly partners with these.

1. The MDR-free UPI model. Zero merchant fee on UPI P2M (person-to-merchant) up to ₹2,000. This is a deliberate policy choice to drive adoption — government compensates NPCI / banks for low-margin txn processing. Above ₹2,000 and B2B, fees apply.

1. EBPP and BBPS economics. Billers pay small fee per bill collected (₹0.5-3 typically). Customer pays nothing. Aggregators (Paytm, PhonePe) capture marketing data + cross-sell.

1. Hosted vs embedded gateway tradeoff. Hosted (redirect) gateways are simpler to implement but show "Razorpay" branding. Embedded gives full control but requires PCI compliance. Most Indian SMBs use hosted; large brands embed with tokenisation.

1. The Aadhaar-bank-mobile trinity changed commerce. Pre-2014, ~50% of India was unbanked. Today, 99%+ have a bank account (Jan Dhan). This banked base enabled UPI to scale rapidly.

PYQ pattern: "What is UPI? Explain its architecture and benefits." — Define NPCI, 2016 launch; diagram 4-party model (Payer, PSP, NPCI, Bank); list benefits (instant, free, 24×7, scalable, secure); cite 16B monthly transactions.

PYQ pattern: "What is a payment gateway? Explain its working with diagram." — Define as merchant-facing payment processor; diagram with 6 components; explain redirect vs embedded models; name Razorpay/PayU/Stripe.

PYQ pattern: "What is EBPP? Explain its components." — Define electronic bill presentment + payment; 4 components (biller, aggregator, customer, bank); mention BBPS as Indian unified network.