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Nikhil KamathNikhil Kamath

If UPI Is Free, Who Pays for It? | PhonePe, Razorpay & NPCI | WTF is Payments?

Access the full data and references used in this episode below. Please open this alongside the episode while watching. https://www.canva.com/design/DAHVQSlqQZQ/Nfv8N2FMGz22OAcanl0LFg/edit We scan a QR code, enter a PIN, and move on. I wanted to understand everything that happens in between. If a payment feels instant and costs us nothing, who is doing the work, who is taking the risk, and who is paying for it? I sat down with Sameer Nigam of PhonePe, Harshil Mathur of Razorpay, and Sohini Rajola of NPCI to follow a payment through the system. We draw out the journey between an app, the banks and NPCI, get into why the confirmation on our phone and the settlement between banks are different things, and compare that with what happens when we use a credit card. From rewards and merchant fees to fraud, failed transactions and the cost of handling cash, there is a business behind every way we choose to pay. The conversation also gets into MDR, how the ecosystem funds itself, and what it takes to keep investing in wider access. Then we look ahead: cross-border payments, business payments, wearable rings, digital tipping, and AI agents that might eventually shop and pay for us. The guests disagree on how quickly that future arrives, especially in India. If you were starting a payments business today, which problem would you try to solve? Watch the full conversation and tell me below. Timestamps: 00:00 Introduction 02:23 Sohini Rajola: Her journey and NPCI's role 09:40 Banks, fintechs and digital banking 14:11 Harshil Mathur: The problem that led to Razorpay 20:36 Sameer Nigam: His journey before PhonePe 24:08 Why young Indians want to leave 30:28 UPI's early builders and the cost of overregulation 43:16 Flipkart's payment failures and the birth of PhonePe 52:02 How a UPI payment actually works 59:06 If UPI is free, who pays for it? 1:05:26 Instant payments vs bank settlement 1:08:24 Stablecoins, CBDCs and the future of money 1:14:52 Wealth inequality, inheritance and capital gains 1:17:11 The zero-MDR debate: Funding the payments ecosystem 1:21:31 Should UPI apps have market-share caps? 1:33:08 Can new banks and startups compete in India? 1:41:18 How card and merchant payments work 1:49:39 Credit-card rewards and RuPay on UPI 1:54:12 How Razorpay improved online payments 2:02:08 The B2B payments opportunity 2:05:36 Building payments for medical tourism 2:09:54 Why digital tipping is still unsolved 2:16:01 What payment data reveals about India's consumers 2:21:22 Trust and India's next wave of online shoppers 2:26:07 GST, consumption and property taxes 2:31:38 Affordable food, quality and accountability 2:37:55 Cash vs digital: Measuring India's spending 2:42:20 B2B payments, merchant data and access to credit 2:44:31 Stablecoins, cross-border transfers and capital controls 2:51:59 Will AI agents change how we shop and pay? 2:57:57 Is AI in a bubble? 3:03:01 AI costs, productivity and human work 3:08:59 What should young founders build for AI commerce? 3:16:01 Who benefits from AI? Business and investment opportunities 3:24:31 Meet the builders: Seven, Dodo Payments and PayGlocal 3:26:46 How cross-border payments and merchant-of-record models work 3:34:55 Stablecoins and CBDCs: Speed, trust and regulation 3:39:20 The founders' view on competition and market share 3:41:31 Seven's payment rings: Cashback, revenue and adoption 3:47:20 Medical tourism and other cross-border opportunities 3:51:07 Tap-to-pay, tipping and the future of wearables 3:53:48 Cheaper AI and the pace of agentic commerce 3:56:47 Fraud, trust and safeguards for AI payments 3:59:18 Final advice for young fintech founders Sohini Rajola- Executive Director Growth at the National Payments Corporation of India. Linkedin:https://www.linkedin.com/in/sohinirajola/ Sameer Nigam- Founder and CEO of PhonePE Linkedin: https://www.linkedin.com/in/sanigam/ Harshil Mathur: Co-founder and CEO of Razorpay Linkedin: https://www.linkedin.com/in/harshilmathur/ Also featuring perspectives from Vijay Khubchandani, Founder & CEO, Seven LinkedIn: https://www.linkedin.com/in/vijaykhubchandani/ Prachi Dharani, Co-Founder & CEO, PayGlocal LinkedIn: https://www.linkedin.com/in/prachi-dharani-94530a9/ Yogesh Lokhande, Co-Founder, PayGlocal LinkedIn: https://www.linkedin.com/in/yogesh-lokhande-b760522/ Ayush Agarwal, Co-Founder & CPTO, Dodo Payments LinkedIn: https://www.linkedin.com/in/aagarwal1012/ Nikhil Kamath-Co-founder of Zerodha and Gruhas Host of 'WTF is' & 'People By WTF' Podcast Twitter: https://x.com/nikhilkamathcio/ Instagram: https://www.instagram.com/nikhilkamathcio/ LinkedIn: https://www.linkedin.com/in/nikhilkamathcio?utm_source=share&utm_campaign=share_via&utm_content=profile&utm_medium=ios_app Facebook: https://www.facebook.com/nikhilkamathcio/ Watch 'WTF Online' on Spotify https://tinyurl.com/4tjua4th #WTFiswithNikhilKamath #PeopleByWTF #WTFOnline

Nikhil KamathhostSohini RajolaguestHarshil MathurguestVijay KhubchandanicameoAyush AgarwalcameoPrachi DharanicameoYogesh Lokhandecameo
Oct 30, 20264h 0mWatch on YouTube ↗

At a glance

WHAT IT’S REALLY ABOUT

Inside UPI’s “free” payments: costs, rails, regulation, and what’s next

  1. The episode traces how India’s payments ecosystem evolved into UPI and unpacks who pays the real costs when consumers experience UPI as ‘free.’
  2. Sohini Rajola outlines NPCI’s structure as a Section 8 not-for-profit and explains UPI’s multi-party design, risk controls, and settlement mechanics.
  3. Harshil Mathur shares operational lessons from early large-scale e-commerce payment failures and explains the cost structure differences between UPI transfers and card payments.
  4. The panel debates India’s regulatory posture—arguing overregulation and weak enforcement create fear—alongside disagreements on whether market-share caps are appropriate for UPI apps.
  5. The conversation expands into future rails and products, including cross-border payment models, stablecoins vs CBDCs, agentic payments frameworks on UPI, and wearable/NFC form factors.

IDEAS WORTH REMEMBERING

5 ideas

NPCI operates as a not-for-profit rails builder with bank/fintech shareholders, not a dividend-returning company.

Sohini Rajola describes NPCI as a Section 8, not-for-profit entity formed by RBI and IBA, initially funded by 10 banks, and now funding its technology and infrastructure through internally generated surplus rather than shareholder dividends.

A ‘simple’ UPI payment is a multi-actor, multi-API, fraud-checked orchestration.

Sohini Rajola explains that UPI involves multiple parties (app/TPAP, PSP/sponsor bank, NPCI, sender/issuer bank, receiver bank) and that a typical transfer triggers roughly 10 API calls executed in milliseconds, with additional fraud/risk checks at the app layer and at NPCI’s ecosystem level.

UPI may be free to users, but banks and intermediaries still bear transaction and infrastructure costs.

In the P2P example discussed, the customer is not charged, but the issuing bank pays the PSP bank a slab-based fee (Harshil Mathur says it can cap at 50 paise), justified as a service cost offsetting alternatives like ATM/branch usage; speakers emphasize there’s real infrastructure and compliance cost across banks, apps, and NPCI.

Early Indian digital payments broke under peak loads and ambiguous success/failure states—driving new payment infrastructure priorities.

Harshil Mathur recounts the first Big Billion Day at Flipkart: very high traffic caused multiple bank core banking systems to go down, millions of card payment attempts failed, and ‘deemed success’ issues created cases where customers were debited despite gateway failure messages, forcing costly manual remediation.

Speakers see overregulation plus weak enforcement as a core brake on innovation and trust.

Harshil Mathur argues India frequently ‘invites’ regulation into areas where it needn’t be, creating fear and slowing innovation; multiple speakers link weak/slow legal enforcement to lower trust and a tendency to over-regulate rather than punish wrongdoing effectively.

WORDS WORTH SAVING

5 quotes

The entire history of money has been one move, repeating. Money keeps getting lighter.

— Nikhil Kamath

UPI is a great example. I was there on ground zero. There was maybe 20 people responsible for it.

— Harshil Mathur

The pride has to be in the pride of the quality of your work, right? Like quality of work at every level, and we don't see that, right? This whole jugaadu mindset which has been celebrated so often.

— Sohini Rajola

As I have gotten older, I have come to realize that it's guilty until proven innocent.

— Nikhil Kamath

We have to work very, very inefficiently. And therefore, we work very, very hard to not get much productivity.

— Harshil Mathur

NPCI’s Section 8 structure and fundingUPI actors: TPAP, PSP/sponsor bank, NPCI, issuer/receiver banksFraud and risk checks at app and network levelsUPI settlement cycles vs real-time user experienceZero-MDR and ecosystem sustainabilityCard payments economics and liability/chargebacksMarket-share caps, monopoly concerns, and regulation philosophy (B2B opportunity: invoicing, reconciliation, GST/TDS workflows)

High quality AI-generated summary created from speaker-labeled transcript.

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