₹1 in Delhi, $1 in Dubai: how UPI is quietly conquering cross-border payments

In a supermarket in Dubai's Al Karama neighbourhood — the heart of the city's Indian working-class community — a construction worker from Bihar buys groceries every Friday evening. Rice, dal, cooking oil, phone credit. Until last year, he paid in dirhams from cash withdrawn at an ATM. Last month, he scanned a QR code and paid with his Indian bank account. The receipt showed the debit in rupees. The shopkeeper received dirhams. The transaction took four seconds.

This is UPI abroad. And for the 3.5 million Indian workers in the UAE — many earning ₹25,000-40,000 per month — it is the first time they can pay for things overseas using the same app they use at home.

But UPI's international ambitions extend far beyond convenience at the checkout counter.

The Seven-Country Footprint

NPCI International — the subsidiary of the National Payments Corporation of India responsible for UPI's global rollout — has established merchant payment acceptance in seven countries: the UAE, Singapore, Sri Lanka, Mauritius, France, Bhutan, and Nepal. In practical terms, this means an Indian traveller or expatriate can scan a UPI QR code at participating merchants in these countries and pay directly from their Indian bank account.

The mechanism works through mutual agreements between NPCI International and local payment processors. In Singapore, UPI is linked to PayNow. In the UAE, it connects through Network International and Mashreq Bank. Each partnership is bespoke — negotiated bilaterally, with different settlement currencies, timelines, and compliance requirements.

The Real Prize: Remittances

Merchant payments are useful, but they are not the strategic objective. The real prize is remittances — and specifically, replacing the expensive, slow, and extractive infrastructure that currently moves money from diaspora workers back to India.

India receives $125 billion annually in inward remittances — more than any country in the world. This money flows predominantly from the Gulf states (UAE, Saudi Arabia, Kuwait, Qatar), the United States, the UK, Singapore, and Canada.

Currently, sending money home costs 5-6% of the transaction value through services like Western Union, MoneyGram, and hawala networks. On a ₹30,000 monthly remittance, that's ₹1,500-1,800 lost to fees — money that could pay for a child's school books, a family's medical expenses, a month's cooking gas.

NPCI International's goal: reduce cross-border remittance costs to under 1% through UPI-linked corridors. If achieved, this would redirect an estimated $6-7 billion annually from intermediary fees back into the pockets of Indian families.

Why Scale Is Hard

The technology works. The economics are compelling. So why isn't UPI already the dominant cross-border payment method?

Because the barriers are not technical. They are regulatory, political, and institutional.

KYC Alignment: Each country has different Know Your Customer requirements. Indian KYC standards don't automatically satisfy UAE Central Bank, Monetary Authority of Singapore, or Bank of France requirements. Every cross-border UPI transaction requires compliance with both Indian and local KYC frameworks — which means identity verification protocols must be harmonised or bridged.

Anti-Money Laundering: Real-time cross-border payments are, from a compliance perspective, a nightmare. They create thousands of rapid, low-value transactions that are difficult to monitor for money laundering patterns. Regulators in receiving countries want assurance that UPI corridors won't become conduits for illicit flows.

Settlement Timing: UPI transactions in India settle in real-time — money moves from one bank account to another in seconds. Cross-border settlements, however, involve currency conversion, correspondent banking relationships, and multi-day settlement cycles. Bridging the gap between India's real-time UPI settlement and international banking's batch-settlement model is an ongoing engineering and regulatory challenge.

The Geopolitical Dimension

UPI's international expansion is not just a fintech story. It is a geopolitical one. India is essentially exporting its payments infrastructure — the same way the US exported Visa and Mastercard, and China exported Alipay and WeChat Pay. A country whose payment rails other countries adopt gains structural influence over global financial flows.

India has been explicit about this ambition. PM Modi has personally promoted UPI during state visits to the UAE, Singapore, and France. The Reserve Bank of India has signed bilateral payment agreements with central banks in 15 countries. And NPCI International is in advanced discussions for UPI acceptance in Saudi Arabia, Australia, and several African nations.

"UPI is India's most successful technology export," said Nandan Nilekani, co-founder of Infosys and architect of the India Stack. "It proves that a developing country can build world-class digital infrastructure. The question now is whether the world will adopt it."

The Last Mile

For the construction worker in Al Karama, UPI means one fewer trip to the exchange house. One fewer fee. One more minute on the phone with his family in Darbhanga instead of standing in line.

That is the last mile. And in payments, the last mile is everything. Technology can move money at the speed of light. Regulation moves at the speed of bureaucracy. India's challenge is closing the gap — not in Dubai supermarkets, where UPI already works, but in the remittance corridors where $125 billion flows through pipes that were built for the 20th century and are extracting rents from the 21st.