Trust At Stake
An IIT Bombay report has raised a sharp warning over the proposed merchant discount rate, or MDR, framework for Unified Payments Interface transactions, saying the plan could undermine public trust if implemented without significant rationalisation. The report argues that UPI's success has been built on the perception that it is simple, affordable and largely free at the point of use, and that any policy shift perceived as a hidden charge could quickly alter user behaviour and sentiment.
The caution comes at a sensitive moment for India's digital payments ecosystem, which has expanded at extraordinary speed and become central to everyday commerce, from small roadside vendors to large retail chains and mobility-linked services. UPI has also become a critical payment rail for the automotive and mobility sector, where consumers increasingly use digital transactions for vehicle servicing, charging, fuel purchases, parking, tolls and ride-hailing. In such a broad-based ecosystem, even a modest change in cost structure can have outsized behavioural effects.
The report's central concern is not only the economics of MDR, but the risk of reputational damage to UPI itself. If users begin to associate the platform with additional charges, the system could face negative sentiment that is difficult to reverse. For a payments network that has been promoted as a public digital utility, trust is not a peripheral issue; it is the foundation of adoption. The report therefore urges policymakers to ensure that any MDR framework is calibrated carefully, transparently and in a manner that does not dilute the platform's mass appeal.
Policy Meets Adoption
MDR is the fee paid by merchants to payment service providers for processing digital transactions. In many markets, such fees are a standard part of the payments business model. In India, however, the debate around MDR for UPI is unusually sensitive because the platform has been positioned as a low-cost public infrastructure layer rather than a conventional card-based payment product. That distinction matters. A policy that appears technically sound may still fail if it is seen by consumers as a retreat from the promise that made UPI ubiquitous.
The IIT Bombay report appears to recognise this political and behavioural reality. Its warning suggests that the issue is not whether digital payments should eventually support a sustainable cost structure, but how that structure is introduced. A poorly designed MDR regime could prompt merchants to pass on charges to customers, even informally, creating friction in transactions that have so far been fast and largely invisible to the user. Such pass-through effects could be especially disruptive in price-sensitive segments, including the mobility and automotive ecosystem, where transaction frequency is high and margins are often thin.
The report also implicitly highlights the broader policy challenge facing India's digital public infrastructure. As systems scale, the question of who pays for the network becomes unavoidable. Yet the transition from subsidy-backed adoption to a more mature commercial model must be managed with care. If the public perceives that a widely used digital utility is becoming expensive or less accessible, the backlash could slow adoption just as India is trying to deepen digital inclusion and formalise more transactions.
Balancing Cost And Confidence
For policymakers, the immediate task is to rationalise the MDR framework in a way that preserves confidence while addressing legitimate questions around sustainability. That may require differentiated treatment by merchant size, transaction value or sector, as well as clear communication about whether any charges will be absorbed by businesses, subsidised by the state or passed on to end users. Without such clarity, speculation alone could be enough to damage sentiment.
The report's warning is particularly relevant because UPI's strength lies in habit formation. Consumers use it because it is quick, familiar and trusted. Merchants accept it because it reduces cash handling and broadens customer reach. Any policy that introduces uncertainty into this equation risks weakening the network effect that has made UPI one of the most successful digital payment systems in the world.
For the automotive, EV and mobility sectors, the stakes are practical as well as reputational. These industries increasingly depend on seamless digital payments for recurring, low-value and high-frequency transactions. If users begin to hesitate over charges, or if merchants start discouraging UPI use, the efficiency gains that digital payments have delivered could be partially reversed.
The IIT Bombay report therefore lands as a timely intervention rather than a narrow technical critique. Its message is that India's digital payments architecture must remain economically viable, but not at the cost of public trust. In a system as widely used as UPI, sentiment can shift faster than policy can respond. That is why the report's call for rationalisation is less about resisting change than about ensuring that any change strengthens, rather than weakens, the credibility of the platform.