India’s payments regulator is preparing to make a landmark decision, possibly as soon as Monday, that could reshape the nation’s booming mobile payments market. The ruling is expected to determine whether the dominance of Walmart-owned PhonePe and Google Pay in the Unified Payments Interface (UPI) ecosystem should be curtailed. Such a move could redefine how India’s billion-plus population transacts digitally.
The Core Issue: UPI Market Share Cap
At the center of this decision is UPI, India’s revolutionary payments network supported by over 50 retail banks. It has transformed how Indians pay for everyday needs, from groceries to cab rides, processing over 13 billion transactions every month. This makes UPI one of the largest digital payment platforms globally and the most widely used system for online transactions in India.
The National Payments Corporation of India (NPCI), which operates under the Reserve Bank of India, is weighing whether to enforce a rule limiting any single company to handling no more than 30% of all UPI transactions.
First proposed in 2020, this cap would significantly impact market leaders PhonePe, which controls 47.8% of UPI transactions, and Google Pay, with a 37.1% share. Together, these two giants account for nearly 85% of the UPI market, raising concerns about competition and market diversity.

PhonePe’s IPO Plans in Jeopardy
The regulatory uncertainty has stalled PhonePe’s plans to go public, creating ripples in India’s fintech space. Valued at $12 billion, PhonePe is poised to become one of India’s most high-profile tech IPOs. However, its co-founder and CEO, Sameer Nigam, has voiced concerns over the unpredictability of the regulatory landscape.
Speaking at a fintech conference in August, Nigam explained the dilemma: “If you price a share at Rs 100, assuming we have a 48-49% market share, and then there’s uncertainty about whether that share will drop to 30%, it creates risk for investors.” He urged regulators to either address their concerns directly or propose alternative solutions.
A Lifeline for Emerging Fintechs
Should the cap be enforced, it could open up opportunities for smaller fintech startups to expand their footprint in the UPI ecosystem. By limiting PhonePe and Google Pay’s ability to onboard new users or process transactions, competitors could gain a stronger foothold in a market that has been largely monopolized by these two giants.
Regulatory Delays and Possible Adjustments
Despite the ongoing debate, the regulator may choose to delay implementing the cap yet again or adjust the limit to above 40%, according to sources briefed on the matter. The deadline for enforcement has already been postponed multiple times, from January 2021 to 2023, and then to 2025, due to challenges in execution. Discussions with stakeholders, including industry leaders, have been ongoing, with talks taking place as recently as last week.
However, some stakeholders have warned that enforcing a cap could negatively affect the user experience by disrupting services that millions rely on daily.
Balancing Innovation and Competition
The debate underscores India’s challenge of balancing technological innovation with the need to foster fair market competition. UPI has been a cornerstone of Prime Minister Narendra Modi’s vision to digitize India’s economy and reduce dependence on cash. Its simplicity—allowing instant bank transfers through identifiers like phone numbers—has made it a game-changer for millions, especially in rural and underserved areas.
A market share cap, if implemented, would represent one of India’s most significant regulatory interventions in the tech sector, a space that has attracted billions in investments from global giants like Walmart, Google, and Meta. These corporations view India, with its youthful, increasingly digital population, as a key growth market.
As the regulator’s decision looms, the outcome could shape the future of India’s payments landscape, either cementing the dominance of current players or paving the way for new entrants to thrive in the world’s largest digital payments ecosystem.